On July 18th, recently, some owner users of Zhixing shared their experience videos in the user center on the Internet platform, and emphatically introduced the dining-related experience, and nicknamed the user center as "HarmonyOS Hotel" and "Wenjie Hotel".

IT House noticed that Yu Chengdong, managing director of Huawei and chairman of terminal BG, also shared his experience in "HarmonyOS Hotel" yesterday:

It’s very distinctive to come to HarmonyOS Zhixing User Center in Inner Mongolia for supper. We have launched more than 600 user centers across the country.Free vehicle inspection in summer, including More than 200 companies support HarmonyOS Zhixing starry night service., convenient for users to come after work, check a car,Have a mealFeel free to go home.

It is worth mentioning that Yu Chengdong also shared the menu of Guest Meal Week in Zhixing User Center in HarmonyOS, Inner Mongolia: the dinner time is 19:30-21:30, and during the period from July 14th to July 20th, the daily dishes are different, but they are all Chinese.Roughly including four main dishes+one soup+one fruit.The staple food is expected to be rice.

At present, the official meal price has not been announced yet. IT House called the local HarmonyOS Zhixing User Center and learned that,Car owners and users are free to eat, and no related fees are charged.. For reference, HarmonyOS Zhixing announced on the community platform at the end of last month that its offline layout reached a new high, and 32 new user centers were built from April to May. At present, there are 290+ users in Wenjie User Center, 160+ users in HarmonyOS Zhixing User Center and 710+ users in Experience Center. It is reported that HarmonyOS Zhixing will build high-end store services, including store image, exhibition hall environment, sales reception, coffee service, delivery ceremony and after-sales service. In addition, HarmonyOS Zhixing plans to build a 350+ user center in 2025.

　　Wen _ Dianbingtang

　　It is said that at the end of World War II, the German Third Reich, which was violently attacked by the East and West lines of the Allies, came to an end in the rumble of guns.

　　Driven by madness and despair, German scientists put all their eggs in one basket and put forward a large number of new weapon designs, such as the "Giant Mouse" super heavy tank weighing more than 1,000 tons and the "Silver Bird" space plane with a range of 20,000 kilometers. These weapons, which are divorced from rationality and common sense, are jokingly called "Nazi black technology" by future military enthusiasts.

　　Among them, there is a "black technology" with the strongest power and the largest amount of work-and it is also the most impossible to achieve. This is the protagonist of this article: the solar cannon.

　　The fantasy of the solar cannon originated in 1929. In this year, hermann oberth, a famous German rocket scientist, accidentally opened a shocking brain hole in the process of daily research: launching a huge reflector with a diameter of 100 meters into space, which can reflect sunlight to the earth at night. In this way, ordinary crops can enjoy the sunshine 24 hours a day, and the growth rate can be greatly accelerated, thus rapidly increasing the grain output of the fields. In addition, large cities can also get enough light, thus saving a lot of electricity consumed in the lighting system.

　　Oberth recalled: "The sun mirror I imagined is like a naughty student reflecting on the ceiling of the classroom with a mirror. If this light shines across the teacher’s face, it will probably cause him unhappiness. And I am a school teacher who has collected enough data to make this mirror. "

　　With the outbreak of World War II, oberth and his favorite pupil, the famous German rocket scientist Werner wernher von braun, were recruited into the German rocket research and development department to develop the famous V-2 rocket for the army. In the process, oberth revealed the idea of this orbital solar reflector to the German army. After understanding the specific working principle, the German army organized a group of experts to improve oberth’s ideas. In the end, the orbital solar reflector originally conceived for peaceful use was transformed into the doomsday weapon plan of the German army: the solar cannon!

　　In fact, reflecting sunlight as a weapon is not a brand-new design. As early as more than two thousand years ago, there was a legend in Greece that Archimedes used a reflector to focus sunlight and burn the invading Roman fleet. However, the Nazis magnified the power of this concept to an unprecedented order of magnitude this time. According to the German vision, as long as a giant concave mirror is launched into space and enough sunlight is gathered, it can produce an ultra-high temperature that no defense facility can resist, burn enemy warships on the ground and even destroy enemy cities!

　　At that time, it seemed that the idea of solar cannon as an orbital weapon was undoubtedly very advanced. Once it is realized, it is definitely conan the destroyer’s big killer. However, the rocket technology of World War II is still in its infancy. Nazi Germany consumed a lot of resources and only developed a V-2 ballistic missile with a bomb load of 1 ton. It is undoubtedly an idiotic dream to use it to launch solar cannons that must be deployed in high-altitude space orbit. After the war, oberth and Braun were captured by American troops together. During the interrogation, oberth poured beans out of the bamboo tube and gave the details of the solar gun plan to the American interrogators in detail.

　　When the news reached Life magazine in the United States, the olfactory-sensitive editor was immediately attracted by the theme "The Nazis tried to scorch the earth with a sun mirror". They started at full speed at once. In July 1945, when the Second World War was not completely over, Life magazine made this amazing secret weapon of Nazi Germany public.

　　According to Life magazine, Nazi Germany’s solar cannon is an unprecedented giant weapon and the largest artificial object ever designed by human beings. In order to focus enough sunlight and cause devastating killing effect, this weapon will be suspended in a space orbit with a height of 8,200 kilometers, with a reflector area of over 9 square kilometers and a weight of one million tons. Once completed, it will be more than 100,000 times more powerful than Archimedes’ mirror, and it can easily destroy any big city, which can be called killing people and killing Buddha!

　　According to the idea of Nazi scientists, the work of building a space station began with the launch of an unmanned rocket. When the rocket enters the 8200-kilometer-high orbit, it will unfold six long metal cables, which are only about 0.5-1.5 inches in diameter, and will be deployed in place by themselves under the rotation of the rocket as the starting skeleton of the solar cannon project.

　　Next, the subsequent rocket will transport a pair of sunglasses components from the earth to space. These sunglasses components are essentially hollow metal frames made of sodium. On the earth, high-purity metallic sodium will be rapidly oxidized and lose its luster. However, there is no such problem in space. Sodium metal has good reflection effect and low density, and it is an ideal raw material for sunglasses in the eyes of Germans. Along the skeleton, the sunglasses components are pieced together one by one, and the installation angles are slightly different from each other. Finally, a huge concave mirror can be assembled, and the solar cannon is finished.

　　After the solar cannon is completed, this huge mirror will leave a round hole with a diameter of 30 feet wide as a connecting channel. The cargo rocket launched from the earth will be inserted into this round hole in a seamless way to transport building materials and supplies for the solar cannon. In fact, as long as we compare the modern space station, we can find that the German design was too complicated. As long as the operation is a little careless, the launch vehicle is likely to cause irreparable damage to the docking channel, which will directly affect the safety of the solar cannon. However, in the 1940s, it was not easy for German scientists to have such a design.

　　The solar cannon is actually a giant space station, which needs to accommodate a large number of people for daily maintenance. To this end, German scientists deliberately launched various designs.

　　First of all, the energy problem of solar cannons should be solved. In this space station with an area of 9 square kilometers and a weight of millions of tons, the operation of any equipment needs the promotion of energy. Where does the energy come from? The reader’s first reaction may be to directly convert sunlight into electric energy. However, in the 1940s, the technology of solar cells was still far from mature, so the Germans chose the principle of steam turbine-placing a transparent totally enclosed water tank on the outside of sunglasses, using sunlight to heat water, generating high-temperature and high-pressure steam, driving the turbine to drive the generator, and then transporting the cooled water back to the water tank, thus generating a steady stream of electric energy.

　　Secondly, in the 8200-kilometer-high orbit, the interior of the space station is almost weightless. In order to make workers move relatively freely, scientists have designed special "space shoes", with magnets installed on the soles, which can be stably adsorbed on the metal floor to create an environment similar to the ground.

　　However, the next question is quite important. Living in space, where does the oxygen that workers breathe come from? How to get food?

　　The German solution made future generations feel incredible-pumpkin!

　　From the perspective of Nazi scientists, pumpkins can effectively consume carbon dioxide exhaled by workers and provide sufficient oxygen, and more importantly, pumpkins are nutritious and healthy food. As for eating pumpkins all day, will it lead to a decline in staff morale? Germans don’t seem to think too much. Maybe in their view, this is a problem that can be solved by preparing more spices. As a result, thousands of hydroponic farms were placed inside the space station, all of which were used to grow pumpkins. It is worth mentioning that these pumpkins can’t be directly exposed to sunlight, because there is a lack of air in outer space, which can’t filter out some cosmic rays that are unfavorable to plant growth. Therefore, some of the electric energy output by the generator of the space station is used for fluorescent lamps instead of sunlight to illuminate pumpkins and help them carry out photosynthesis.

　　After providing a suitable living environment, the next step is the control of the solar cannon. How to aim at a target and focus sunlight on a point is a very challenging job. Behind the mirror with an area of 9 square kilometers, there are many miniature rocket engines. By adjusting the thrust of the engine, the staff can push the solar cannon to rotate slowly. What needs to be explained here is that even with the back to the sun, the other side of the mirror is polished to minimize the solar radiation.

　　In addition to marveling at the huge amount of work, Life magazine thinks that the height of solar cannons is low, and the best deployment position should be geosynchronous orbit 36,000 kilometers away from the earth. Here, the solar cannon can keep relatively static with the earth, and the staff have enough time to adjust the angle of the mirror and aim at the target on the earth. In addition, American calculations show that the diameter of the spot reflected by the solar cannon to the earth may be 40 miles, which means that the focusing effect is not enough to produce any destructive power.

　　For this, oberth did not agree. "This beam is really not hotter than the sun on the equator, but if the diameter of the mirror is doubled, the irradiation intensity will be four times, and the temperature of the beam irradiated on the ground will be as high as 200 degrees. This beam may not be able to directly burn the city or blow up the battleship, but it can definitely cook the humans on the ground! "

　　When the war ended, oberth devoted himself to the study of UFO phenomenon, and firmly believed that human beings would one day be able to build the solar reflector he envisioned and put it into peaceful use. On December 28th, 1989, when the Iron Curtain of the Cold War was about to fall, oberth died quietly. At this time, his dream-the goal of making a sun mirror in earth orbit-has still not been realized.

　　What oberth didn’t know was that after the war, at the other end of the Iron Curtain, a Soviet rocket scientist was trying to realize his ideal.

　　In the late 1980s, Vladimir Sergevich Syromyatnikov (hereinafter referred to as Tennikov), a famous Soviet space scientist and inventor of the docking mechanism of Soviet/International Space Station spacecraft, came up with a solar reflector scheme to solve the lighting problem in the polar regions of the Soviet Union at midnight. Although the solar reflector he designed was not as crazy as the Nazi German solar cannon, it was enough to provide a full moon-like lighting effect for the area 5 kilometers above Fiona Fang. According to Tennikov’s idea, this design can completely ensure night lighting, making street lamps and flashlights a decoration.

　　Soon after, the powerful red empire collapsed, but Tennikov’s solar mirror plan was unexpectedly unaffected. On October 27th, 1992, the cargo ship "Progress M-15" was successfully launched with the solar reflector "Flag 2" designed by Tennikov. After completing the replenishment mission for the Mir space station, Progress M-15 left the Mir space station on February 4, 1993, and then launched a 20-meter-wide "Flag 2" solar reflector in orbit near the space station to carry out preliminary theoretical experiments. This experiment was quite successful. The "Flag 2" solar reflector successfully illuminated a 5-kilometer-wide area, and the brightness was almost comparable to that of the full moon! In the end, this solar mirror followed the "Progress M-15" into the atmosphere and burned out.

　　Tennikov was greatly encouraged and designed "Flag 2.5" again. According to his prediction, this 25-meter-wide improved solar reflector can produce brightness equal to 5-10 full moons when it is started, illuminating a circular area with a diameter of 7 kilometers. Unfortunately, after the launch, an accident occurred during the deployment of the "Flag 2.5" solar reflector. At that time, a lens was caught in the communication antenna of Mir space station, and the strong communication antenna quickly tore the lens, causing the sunglasses to lose control. In the end, this attempt failed, and this solar mirror, together with the cargo ship "Progress", was burned when it re-entered the atmosphere. Tennikov’s solar mirror plan was cancelled by the Russian Space Agency, which had poor financial resources, because of its high cost.

　　However, Tennikov didn’t give up easily. He went around trying to find new investors, hoping to carry on his solar mirror plan. In order to raise funds, Tennikov almost devoted his efforts to this project. Unfortunately, until his death in 2006, Tennikov had not raised enough funds to continue his "Flag" project.

　　Throughout the development of solar cannons, we can see that there are three obvious shortcomings that limit the development of this equipment.

　　First of all, the cost of building a solar cannon is amazing! According to oberth’s original idea, his solar cannon would cost $3 billion-an astronomical sum at that time. Even the Manhattan Project of the United States to develop nuclear weapons at the same time cost only $2 billion! Compared with the atomic bomb that can instantly destroy a big city, oberth’s solar cannons cost a lot, but even people on the ground are hard to kill, which is obviously not worth it.

　　At the same time, to build a huge solar cannon in space orbit, its engineering quantity and assembly difficulty are very amazing. Although oberth once imagined that this million-ton solar cannon could be built in 15-20 years. But until today, the most Ushizo object assembled by human beings in Earth orbit is only the "International Space Station" with a total weight of 500 tons-this is the result of the cooperation of dozens of countries, including the United States and Russia, in 20 years! Moreover, compared with the international space station built by docking module, the engineering complexity of the solar cannon is several times more difficult: because each mirror must be accurately installed in place, the workers responsible for assembling the solar cannon must wear heavy spacesuits and manipulate wrench tools to install the mirrors one by one, which is difficult for ordinary people to imagine. Even by the time standard of building the International Space Station, it takes at least a dozen generations of efforts and hundreds of years to complete a solar cannon with a weight of one million tons!

　　In addition, the vulnerability of solar cannons is also a problem that people must consider. Although solar cannons in orbit can intercept incoming anti-satellite missiles by reflecting sunlight. However, in wartime, the enemy is likely to use a large number of missiles to launch a saturation attack on this orbital mirror. As long as one missile breaks through the interception line and hits the solar cannon, it can destroy a large number of mirrors and make this expensive special weapon a waste. Moreover, even in peacetime, solar cannons face a major threat-space junk that can be seen everywhere in space orbit. Because of its huge size, the solar cannon has become an excellent target for space junk flying at high speed. As long as space junk destroys one of the mirrors, the effect of the whole solar gun system will be greatly reduced.

　　Although the practical application of solar cannons has encountered many difficulties, this does not mean that no one will carry forward the concept of orbital reflector. On March 23, 1983, President Ronald Reagan announced the strategic defense plan of the United States-the famous "Star Wars" plan. In this ambitious plan, the US military also used an orbital light reflector. However, the light source of these light reflectors is no longer ordinary sunlight, but high-energy laser emitted from the ground! According to the U.S. military’s vision, this weapon can directly reflect the high-energy laser beam emitted by the ground excimer laser transmitter and destroy the enemy ballistic missiles that are on the rise. Once a nuclear war breaks out, the United States can use this weapon to quickly destroy the incoming Soviet ballistic missiles, and then launch a retaliatory nuclear strike without worrying that the nuclear bomb will fall on its own head.

　　Of course, such a powerful weapon still needs to pay a price. Because the laser beam must penetrate the atmosphere, and then be transmitted to the attacking satellite through the relay satellite and then refracted to the target, the laser transmitter on the ground must be very powerful to be competent for this work. In order to achieve this goal, Americans put a lot of money into the development of ground lasers. Until the "Star Wars" project was cut by President Clinton in 1993, the ground laser station for providing light source was still not developed. In the end, the orbital reflector scheme was abandoned by the US military, and the development experience related to the project was applied to other laser weapon research projects of the US military.

　　Although the solar cannon and its derivative products have not been successful in reality, it does not mean that it cannot be a popular weapon in various cartoons, games and movies. In the story of the classic sci-fi cartoon "mobile suit 0079", Ji Wengjun owns a solar shaped gun transformed from a colonial satellite. In the subsequent development of the plot, this solar cannon directly swept the fleet of the Union Army and destroyed one-third of the main ships of the other side. This led to a forced attack by the Union Army of the Earth, which destroyed this threatening solar shaped charge gun. However, this solar energy gathering gun provides energy through the surrounding solar panels, which is essentially different from the working principle of the solar energy gun envisioned by oberth.

　　Besides appearing in the mobile suit series, Sun Cannon also appeared in the Resident Evil series of games. In the plot background of the game Resident Evil: Revelation, a maritime city in the Mediterranean Sea, Tra Griga, collects sunlight through an orbiting solar reflector to provide sufficient solar energy for lighting. When the "Hound" organization launched a biochemical terrorist attack in the city, which turned the whole city into a hell full of monsters, the top management of the Federal Bioterrorism Committee decided to turn the solar reflector into a solar cannon and emit a high-energy beam to completely destroy the city. As Terra Griga was completely reduced to ashes by high-energy beams, the story of the game-Floating Island Panic came to an end.

　　However, the most original work of oberth’s solar cannon design is the last 007 film "Die Another Day" starring pierce brosnan. In this movie, James Bond’s enemies have a solar cannon in orbit exactly as oberth imagined. In the film, this solar cannon destroyed the rocket car driven by Bond, the huge ice sculpture building, the missiles that attacked the solar cannon, and even the transport plane that the villain was riding! Perhaps the director of the film wants to pay tribute to oberth, the visionary of the orbital solar reflector. When the villain in the film announced the existence of the solar gun, he deliberately advocated that the orbital gun was only used for "civil lighting".

　　Although oberth’s idea of a solar cannon, and the idea of an orbital reflector derived from it, has not yet come true. However, his solar cannon is still active in many sci-fi works and is regarded as a classic sci-fi technology setting, which makes people feel very gratified. With the continuous development of space science and technology, maybe in the near future, someone will follow oberth’s legacy, solve the technical problems that limit the development of solar cannons, and finally develop an orbital reflector for the peaceful use of solar energy for the benefit of mankind!

When it comes to inflation, the financial crisis may be the first thing that comes to mind. Many major financial crises in history were caused by excessive inflation, and many of them were caused by war. For example, the "inflation" recorded in history textbooks during the Republic of China-the government of the Republic of China issued a large number of French currency notes to pay for the huge war expenses. In 1947, 100,000 yuan of French currency notes were issued, and the price was like a runaway horse. At that time, a professor’s salary was more than 10 million yuan, but it was not enough to buy five loaves of flour.

War consumes not only life, but also money. As early as the Northern Song Dynasty, Cai Jing, the financial minister, made a great deal of money in order to attack Xixia, and his means was to issue "pawn money".

Minister of the Northern Song Dynasty, the successor of Xining Reform

Cai Jing was a powerful minister at the end of the Northern Song Dynasty, and Song Huizong was the prime minister for five times, which experienced the whole process of the Northern Song Dynasty’s demise. Cai Jing is also a notorious treacherous court official in the history of China, and his life is recorded in the Biography of Treacherous Court Officials in Song Dynasty.

Cai Jing’s official career is full of ups and downs, and his official career cannot be separated from one person-Wang Anshi. In the second year of Xining in Song Shenzong (AD 1069), Wang Anshi began to carry out political reform, which was called Xining Political Reform in history. The aim of Wang Anshi’s political reform was to enrich Qiang Bing, which was soon realized, and the court obtained enough military materials and troops. Cai Jing’s younger brother Cai Bian is Wang Anshi’s son-in-law. During the reign of Xining, recommended by Wang Anshi, Cai Jing entered the book ceremony room to study official business. Thanks to Wang Anshi’s support, Cai Jing’s official career prospered and soared all the way. Soon, the official arrived at Zhongshu Sheren, Longtuge, and the right to know Kaifeng.

In the fourth year of Yuanfeng (AD 1081), Song Shenzong launched a large-scale war against Xixia, and Song Jun suffered a crushing defeat. Song Shenzong’s dream of making great achievements in the world was shattered, and he soon died of depression.

In the eighth year of Yuanfeng (AD 1085), Song Shenzong died, Song Zhezong ascended the throne, and the power was in the hands of Song Shenzong’s mother, Gao. Sima Guang was appointed as the prime minister and started the reform movement of Yuanyou, completely denying Wang Anshi’s political reform.

Cai Jing, as a member of Xining Party, was banished from the imperial court and became an official at the local level during the period of Yuan Yougeng. After Song Huizong took office, Xi Ning Party members were employed. At this time, Wang Anshi had already passed away, and Cai Jing became the prime minister as the successor of Xi Ning’s political reform, thus restarting the great cause of political reform.

Ten dollars in business, money law is in chaos.

In the first year of Chongning (A.D. 1102), when Cai Jing was just appointed as the vice minister, he immediately ordered the new laws of the Song Shenzong period to be re-implemented. At this time, there was a Xining Party member named Xu Tianqi, who served as a transshipment agreement in Shaanxi at that time. In order to cater to Cai Jing, he asked the court to cast ten yuan. During Wang Anshi’s political reform, he used to cast a lot of money to fold two dollars. At this time, if you cast ten dollars, the nominal value will increase by five times compared with the discount of two dollars. The intention of infringing on the interests of the people is too obvious. Cai Jing has some concerns, so he temporarily cast five dollars and tried to see its effect. In May of the second year of Chongning (AD 1103), Cai Jing ordered Shaanxi, Jiangzhou, Chizhou, Raozhou and Jianzhou to use the copper materials that were prepared to cast small flat coins in those years to cast 50 yuan. The inscription "Sheng Song Tong Bao" with a discount of five yuan is slightly heavier than that of Xiao Ping Qian. The nominal value of 50% off is two and a half times that of 20% off. The trial was successful and there was no problem. Soon after, Cai Jing ordered the casting of ten yuan in accordance with Shaanxi’s big money shape, and limited the casting line to three hundred million articles of ten copper coins and two billion articles of ten iron coins in that year. Cai Jing did this because, first, he thought that the ten-fold money was cast on the basis that the five-fold money had entered the circulation, which was only twice as big as the five-fold money and would not cause a violent market reaction; Second, it is estimated that the total amount of coins in circulation at that time was about 200 billion to 300 billion, and the amount of ten yuan in the first line accounted for a small share of the total amount of coins in circulation, which would not have much impact on the purchasing power of money; Third, there is a precedent in Song Renzong’s period to consider the discount of 10 yuan, which can refer to the ancestral casting.

As early as the first year of Kangding, Song Renzong (AD 1040), Song Jun attacked Xixia, and Shaanxi was short of military supplies, so the imperial court was invited to cast large copper coins in parallel with small flat coins, and one copper coin was used as ten. Since then, ten iron coins have been made, which led to the theft of casting by the people, so the money law was in chaos. After frequent adjustments to the money law, the court gradually calmed down the chaos of the money law. Cai Jing used the shape of Shaanxi’s big money to cast it as ten money, in order to borrow the ancestral system and obtain the legitimacy of currency reform.

Discount five yuan for the inscription "Sheng Song Tong Bao" and ten yuan for the inscription "Chong Ning Chong Bao". From the unearthed cultural relics, the number of "Shengsong Tongbao" with a discount of five yuan is very small, because the casting line soon changed to "Chongning Chongbao" with a discount of ten yuan. At that time, more casting was "Chongning Heavy Treasure".

In the Northern Song Dynasty, the word "fold" was often used to express the amount of virtual money. During the period of Song Huizong, the pawn money was originally called "ten-fold money". In October of the second year of Chongning (AD 1103), Song Huizong ordered that "ten-fold money" be renamed as "ten-fold money". The end of the Chronicle of the Emperor and Song Dynasty as a Mirror contains: "The imperial edict is changed into two, and the ten is combined as two and ten." Lu You’s "Old Story of the Family" also contains: "At the beginning, Xi Ning cast two yuan, so Chongning Daquan began to be called’ 10′, but the group castrated that Huizong was the tenth son of Shenzong, and’ 10′ was not a good name, so it was called as 10, so it was ordered to cloud." It can be seen that Song Huizong should call the money "10% off" in the early years; After the imperial edict of Chongning for two years, the money should be called "pawn ten money". However, there are many confusions in the literature records.

After the imperial court minted ten yuan, the people stole it and the money law was in chaos. In order to prohibit the people from stealing castings, the court issued several bans. However, the lure of huge profits still makes the phenomenon of casting theft very serious, and many people do not hesitate to try their own laws. In the fourth year of Chongning (A.D. 1105), Shangshu said: "I heard that the southeast roads were stolen and cast as ten dollars, and the boat was cast in the rivers and seas. When I was an official, I didn’t care about my heart, and I indulged in evil." People steal ten coins, melt small money into copper, and cast it into big money, so they can get several times of profits. In order to avoid the arrest of the government, this illegal activity has developed to ships on rivers and seas.

Fang La Uprising, United with Jin and destroyed Liao, finally became a swan song.

A small sum of money has helped the people for a long time, and the ancient people have prospered the army, but the tin reward has not continued, or one is a hundred, or one is a thousand. This right is appropriate at the right time. How can it be done on a peaceful day? When ten drums are cast, there are several times of interest. Although it is cut every day, it is unstoppable.

In the third year of Daguan (A.D. 1109), Taiwan remonstrators spoke in succession about Cai Jing’s sins. Therefore, Cai Jing lost his post as prime minister for the second time and presided over the compilation of A Record of Zhe Zong. However, three years later, Cai Jing was in power again.

In May of the second year of Zhenghe (AD 1112), Cai Jing was appointed as Prime Minister for the third time. Unexpectedly, in November of the following year, He Zhizhong became the left servant of Shangshu, and also served as the assistant minister and became the prime minister. Song Huizong made Cai Jing a prince, a surname, and a duke of Lu. Cai Jing lost his post as prime minister for the third time.

In April of the sixth year of Zhenghe (AD 1116), He Zhizhong became an official. Lin Lingsu, a Taoist priest, told Song Huizong that Song Huizong was the eldest son of God, the king of God’s clouds and jade, and came down to be emperor. Cai Jing, an immortal of Zuo Yuan, came down to assist Song Huizong in governing the world. Song Huizong was convinced of this, claiming to be the "leader of Daojun Emperor" and ordering Cai Jing to take charge of the affairs of Zhongshu, Menxia and Shangshu provinces.

This is Cai Jing’s fourth term as prime minister. In June of the second year of Xuanhe (AD 1120), Cai Jing was removed from the post of prime minister for the fourth time.

At this point, Cai Jing is seventy-four years old. Cai Jing was removed from the post of Prime Minister this time, nominally because of his old age, but actually because of his opposition to the Northern Expedition of Liao. The person who succeeded the post of prime minister, whose name was Wang Fu, was a troublemaker. Wang Fu served as prime minister for four years, and the Northern Song Dynasty was constantly in trouble. First, Fang La uprising, and then United Jin to destroy Liao.

Although Cai Jing has resigned, his policy of collecting money has gradually produced serious consequences. According to Cai Jing’s policy of accumulating wealth, officials at all levels plundered the people’s wealth, and the people couldn’t live any longer, raising flags in succession to rebel.

Fang La raised his arms and responded everywhere, and many private tea dealers and salt dealers defected to Fang La. Within a few days, the rebel army grew to one hundred thousand people. With troops, Fang La began to attack the city, and the insurgents were invincible, robbing rich rooms and killing officials everywhere. In December, the rebels occupied Muzhou (now Chun ‘an County, Zhejiang Province) and Shezhou (now Shexian County, Anhui Province), and conquered Hangzhou, the southeast town of the Northern Song Dynasty. At this point, the number of the uprising people is close to one million, and the four sides are shocked.

In order to whitewash the peace, Prime Minister Wang Fu concealed the truth. In the imperial history, Chen Guoting believed that Wang Nai’s concealment of military intelligence was the main reason for the spread of the uprising. In his recital to Song Huizong, he said: "To Cai Jing, the man who was the coach, and Wang Fu, the man who raised the coach, if these two men are taken down for questioning, then the coach will be even."

When Song Huizong heard the news, he immediately wrote a letter to himself, ordered the abolition of Hua Shigang, cancelled the artificial bureau, exempted the public and private debts in the uprising area, and refused to accept land tax for three years.

The Fang La Uprising was brutally suppressed, and the court spent a lot of money. The financial situation of the Northern Song Dynasty was even more tense, and the life of the people was even more difficult.

In the first year of Zhenghe (AD 1111), Tong Guan went to Liao. There was a Han official named Ma Zhi in Liao country who was dissatisfied with Liao dynasty. When Ma Zhi met Tong Guan, he presented Tong Guan with the plan of uniting the gold to destroy Liao. In the fifth year of Zhenghe (AD 1115), Ma Zhi fled to the Song Dynasty, met Song Huizong, and once again put forward the idea of uniting Jin to destroy Liao.

At this time, the state of Jin became stronger and stronger, while the state of Liao gradually declined. Liao country is no longer a concern, but Jin country has become the main threat of Song Dynasty. Therefore, many scholars in the Northern Song Dynasty opposed the alliance of Jin and Liao. However, sixteen prefectures was in the hands of Liao State, which made the northern border of Song Dynasty have no danger to defend. Recovering sixteen prefectures is the greatest wish of the Song Dynasty for a long time. At this time, the decline of Liao’s national strength seemed to be the best time for the Northern Song Dynasty to recover sixteen prefectures. Faced with such a huge temptation, Song Huizong couldn’t resist, and finally accepted Ma Zhi’s idea of destroying Liao with gold, and gave Ma Zhi the royal Zhao surname. Ma Zhi was renamed Zhao Liangsi.

In the first month of the fifth year of Zhenghe (AD 1115), Akuta proclaimed himself emperor, with the title of Daikin. In September, Jin Jun captured Huanglongfu (now Nong ‘an County, Jilin Province), a military town in Liao, and Emperor Tianzuo of Liao led 700,000 troops to counterattack Huanglongfu. As a result, the Liao army was defeated.

In March of the second year of Xuanhe (A.D. 1120), Zhao Liangsi met Akuta from Dengzhou (now Penglai City, Shandong Province), and the two sides reached an agreement: Jin Jun attacked Liaozhongjing (now Ningcheng County, Inner Mongolia Autonomous Region), and Song Jun attacked Liaoning Nanjing, also known as Yanjing (now Beijing); After Song Jun captured Yanjing, Yanjing and the prefectures under its control belonged to the Song Dynasty, which transferred 500,000 pieces of silver silk originally given to the Liao Dynasty to the rulers. This agreement is known in history as "Song, Jin, Xuan and Maritime Alliance". With the Covenant, 8 Jin Army began to attack Liao without any worries, while Song Jun was transferred to suppress the Fang La uprising.

In the first month of the fourth year of Xuanhe (AD 1122), 8 Jin Army broke through Liaozhongjing; In March, the Jin army attacked western Liaoning. At this point, Liao Wujing has lost four, and only Yanjing exists. Emperor Tianzuo of Liao fled to Jiashan (now Wuchuan County, Inner Mongolia Autonomous Region), and Jin Jun concentrated his forces on pursuit, so he had no time to take care of Yanjing. At this point, Tong Guan has wiped out the Fang La uprising. Therefore, Song Huizong appointed Tong Guan as the Xuanfu envoy of Hebei and Hedong, and Cai You, the eldest son of Cai Jing, as the deputy envoy, and became the general commander of Zhongshi Daodu, leading an army of 150,000, attacking Yanjing and launching the Battle of Yanshan.

The national strength was weak, the Chaogang was corrupted, and the war broke out again, and another eunuch of Song Huizong, Li Yan, caused a great disaster to Song Huizong. Li Yan checked the fields in the northwest, confiscated more than 34,300 hectares of land of the people, and killed more than 1,000 people with sticks, resulting in countless bankrupts. As a result, people in JD.COM and Hebei rebelled, making it more difficult for the court to stabilize the situation.

Cai Jing has lost his position as prime minister because of his opposition to uniting Jin to destroy Liao. There was a covenant between Song and Liao, which lasted for a hundred years. At this time, the war ends together, and the future was unpredictable. Cai You, the son, went to fight against Liao, and Cai Jing was sad and gave a poem to his son:

The lazy man is not free in body and mind, and the letter is sent with tears.

A hundred years of faith and oath should be deeply read, and the three-volt sign should be combined with less rest.

Seeing the standard like yesterday’s dream, I feel deeply worried.

It’s full of breeze in the clothing hall, and I’ll come back early and get drunk.

With the ups and downs of Cai Jing’s official career, the amount of pawn money in circulation is also increasing, and inflation is intensifying. The price of rice has risen to about 400 to 1,500 per stone, which is about three to five times higher than the price of 100 to 300 per stone in the early Northern Song Dynasty. The price of silk rose to about 2,000 Wen per horse, which was about twice as high as that of about 1,000 Wen per horse in the early Northern Song Dynasty. Serious inflation has made people’s lives increasingly difficult, and the voice of opposition to Cai Jing in the DPRK is growing. When the nomads from the army attacked Taiyuan and nearly forced the capital, and Song Huizong gave Song Qinzong a Zen position, Taixue invited the imperial court to kill Cai Jing to thank the world.

After Song Qinzong ascended the throne, he demoted Cai Jing once and then, and a few months later he demoted Cai Jing to Hainan Island for resettlement. However, Cai Jing failed to reach Hainan Island and fell ill and died halfway to Changsha. A few months after Cai Jing’s death, the nomads from the army invaded Kaifeng and took Song Huizong and Song Qinzong to the north. As a result, the Northern Song Dynasty perished, and the circulation of ten coins finally came to an end.

(This article is excerpted from "Taking Wealth from the People: Eight Great Ministers in the History of China")

By Shi Junzhi

Seize the wealth from the people

CITIC Publishing House published in September.

About the author: Shi Junzhi, Ph.D. in History from Beijing Normal University, J.D. from China Renmin University, Ph.D. in Economics from Tsinghua University, and a scholar in the history of monetary law in China. Researcher, Institute of Finance, China Academy of Social Sciences, General Manager of National Trust Company Limited.

He has held senior management positions in the International Business Department of China Bank Head Office, China Bank London Branch, China Merchants Bank Head Office, Orient Asset Management Company and Bohai Bank Head Office, and has 25 years of financial practice and management experience. He is the executive director of China Institute of International Finance, tutor and part-time professor for master students of Central University of Finance and Economics, tutor and part-time professor for master students of graduate department of China People’s Bank, tutor and part-time professor for master students of Hunan University Law School, and member of the editorial board of Translation of Financial Works of China Financial Publishing House.

　

　　Xinhua News Agency, Wuhan, March 30th (Reporter Zhao Jiantong, Liao Jun, Xiong Qi) When it comes to the football super league, what most fans can think of is "Premier League", "Portuguese Super League" or "Super League". However, last Sunday, a primary school in Wuhan started a "Wan Chao" league with 28 teams. Ten rounds of matches will be held every week until the end of the semester.

　　Wansongyuan Road Primary School has a long history of developing campus football, and has trained athletes such as Tu Shengqiao, Hao Junmin and Hanlin Yao. In the 2022 China Youth Football League, "Wanxiao" participated in six groups in Wuhan Division and won the championship and runner-up in four groups. Xinhua News Agency reporters found some unique details after attending the opening ceremony of the "Wan Chao" League in the new semester and observing many games, which may provide a glimpse of the school’s many successful experiences in campus football.

　　A 61-page order book

　　After the opening ceremony of the league, the game began. The rapid transition from the ceremony venue to the football field, from the coach leading the students to warm up before the game to the skilled referee, from the ambulances and medical staff prepared on the sidelines to the guzheng performance performed by the middle school students, the orderly and orderly organization and implementation of the professional "Wan Chao" League is impressive.

　　When turning over the 61-page "Wan Chao" League Order Book containing 14 major items, everything seems to have an answer. Among them, the rules, schedules and other provisions have extremely detailed provisions on the division of activities, competition processes and award selection rules, and the professional level is almost comparable to that of professional competitions.

　　"Wan Chao" League also has some special settings. For example, students must have excellent cultural achievements to participate in the competition, talent shows should be interspersed at halftime, scores should be scored on and off the field according to age and formation, and the code of conduct that requires coaches to understand the advanced techniques and tactics of world football should be detailed.

　　Principal Xiong Liping introduced that this year, "Wan Chao" was upgraded from a campus football event to a mass sports compound event in Jianghan District. Six young teams and four adult teams were invited to join the league.

　　Among the four adult teams, there are three teams composed of hospital, bank employees and nearby residents, and one is the school coach team. In the competition system, the teams of Grade 5 and Grade 6 of Wanxiao were grouped into adult groups and will compete with four adult teams. In addition, this arrangement of "playing big with small" also implies the coach team’s deeper thinking about youth football.

　　Coach Deng Shijun said that this competition system is actually to provide a high-intensity competition environment for small players. "Football is not only a technical and tactical issue, but also involves psychological and social aspects. There was a child in the game just now. He was out of balance when confronted with strong confrontation. I think this is also a place where many children need to improve. "

　　Professional coach of Rooted Primary School

　　Deng Shijun, 51, is known as the "father of grass-roots football" in Wu Hanyou. He is the only primary school teacher in China who has obtained the qualification of AFC lecturer and AFC professional football coach, and is also the head of the coaching team for organizing the "Wan Chao" League.

　　According to the data of China Football Association, at present, only over 100 people in China hold professional-level coaching certificates. Although qualified to coach top professional clubs, Deng Shijun resolutely chose to take root in campus football and devoted himself to educating people for nearly 30 years.

　　Deng Shijun (third from right), lecturer of AFC and professional football coach of AFC. The picture is provided by the school.

　　"After playing the game every weekend, all the game materials will be copied back by the coach for analysis. On Monday, the coach will conduct a collective analysis meeting to guide the training content of this week."

　　"In fact, it lies in being serious or not," coach Deng summed up the uniqueness of "Wanxiao" in playing football. "I have always said that we should wait for the flowers to bloom. Only by paying a lot can we bring out the fine products. Make the grassroots solid, 10 years, 20 years, like Yugong Yishan, take your time. "

　　The "Wanxiao" coaching team currently has 10 full-time coaches. Most of these coaches have professional athletes’ experience, and all of them hold AFC C-level and above coaching qualification certificates. Coach Deng introduced that through the government’s purchase of services, the school introduced full-time coaches, which not only solved the work treatment problem of retired players, but also improved the professional level of campus football.

　　Change venues three times a day.

　　Every Sunday from morning till night, there are 28 teams, which are divided into children’s groups, senior and junior groups and adult groups. During the "Wan Chao" League, the school used an eight-person court to the extreme. After a game between senior and adult teams, the coaches quickly cut the whole field into three pieces with fences, and the six teams participating in the five-a-side competition immediately began to warm up. According to a coach, the venue will also be divided into six blocks for the follow-up three-person competition for children.

　　The fence on the site is actually a common "water horse" on the highway. After years of exploration, coaches found that this kind of tied "water horse" is better than ordinary mobile football purse seine — — It is convenient to carry, will not be knocked over or blown down by the wind, and can also bounce the ball to keep the rhythm of the game continuous.

　　Relying on the class form of group rotation and efficient use of the venue, "Wanxiao" meets the needs of more than 1,000 students in the whole school to have a football class once a week and more than 10 teams to carry out "four practices and one game" on an eight-person venue.

　　"Our venue will be repaired in July and August this year, and the venue will be widened." Deng Shijun said that after the venue upgrade, he hoped to make the "Wan Chao" League bigger and stronger.

　　Parents inside and outside the fence

　　Before the opening match of "Wan Chao" League, parents were already standing outside the wall on the street side of the stadium to watch the game, and the trail over 100 meters was crowded.

　　In fact, there are many parents in the crowd near the site within the fence. Zhang Zhihui is the father of a fifth-grade student, Zhang Mulang. He and several teammates’ parents volunteered at the league. These parents and volunteers are divided into different roles, some as photographers to take pictures and record videos for children, some as teaching assistants to help coaches lead the competition, and some on the sidelines to do some equipment and water delivery.

　　Wang Lingjie, the teaching director, said: "Parents have now formed a tacit understanding with the school. They know how to help coaches and teachers make up for their places. This is also a good process for parents to participate in the growth of their children. "

　　Deng Shijun said that with the support of the district government and other sectors of society, students don’t have to pay for "ten thousand small" training and competitions, and they can also receive free football equipment, so the burden on parents is reduced a lot.

　　According to the coaches, with the holding of the "Wan Chao" League, parents who used to take their children to play in off-campus training institutions on weekends now mostly let their children play in school.

These days, the male host of CCTV earned enough space, and even a host resigned on the Internet. But don’t worry, there is no one else to watch. If you really want to talk about CCTV anchors, these high-value new generation beauties must not be missed!

1. Li Sisi used to be the beauty of Peking University.

Li Sisi, born in 1986, is a representative of the new generation Hua Dan of CCTV. In 2012, she acted as the host of the the Year of the Loong Spring Festival Gala, becoming the youngest host on the stage of the Spring Festival Gala. Before being the host, Li Sisi actually stepped into the entertainment circle very early. When she was 9 years old, she filmed the MV of Dong Wenhua’s "The Ballad of the Great Wall". When she grew up, she was admitted to Peking University, and she was named "the flower of Peking University". In 2005, she became the only female champion who served for 8 issues in Challenge Host, and has since entered the stage of CCTV.

The stage is temperament type.

Under the stage is-Meng Meng Da!

Life photos of Li Sisi

2. Yang Mingming became the "Central 5 Goddess" during her internship.

Unlike other female anchors, Yang Mingming, born in 1992, was a hit during her internship.
Red. In 2012, Yang Mingming entered the CCTV Sports Program Center as the first batch of interns. At that time, she appeared in the Midnight Sports Report. Her sweet appearance instantly became popular on the Internet, and some netizens stayed up all night to watch new movies for her.
Smell. Because of her outstanding performance during her internship, Yang Mingming stayed at CCTV after graduation, and now she has become the host of CCTV’s "Feast of the Giants".

Life photos of Yang Mingming

3. Tu Jingwei and Xiaosa used to be golden couple.

Tu Jingwei, born in 1980, is the head of the film channel Hua Dan. As the host of "China Film Report" and "Premiere", she is sensitive in the program, not only active on the screen, but also frequently appearing in major film festivals. Outside of work, the relationship between Jingwei and Sa Beining is also widely known. In 2006, they hosted the Changchun Film Festival and sparked off a spark. They were regarded as the "golden couple" of CCTV, but this relationship ended in 2009.

Tu Jingwei

4. Lei Zhang was once called the successor of Dong Qing.

Like Li Sisi, Lei Zhang became famous on the stage of Challenge Host. In 2006, she stood out from more than 11,000 contestants and was announced to join CCTV on the spot. Later, Zhang Lei was the host of Happy China and Happy Hero. With her dignified and generous hosting style and sweet appearance, she was regarded as the successor of Dong Qing. However, in the rising period of her career, she retired, married an iron ore tycoon in 2013, and did not return to CCTV until March 18, 2014, and then served as the host of Variety Festival.

High-end atmospheric portrait, beautiful ~

Professional modeling ~

5. Mi Li once appeared in the movie "The Thorn Tomb".

Mi Li, born in 1986, is currently the host of China Film Report, The Sound of Music and last romance on CCTV film channel. With a pure image, she is not only the beauty queen of China Communication University, but also a famous talented woman. Now she is studying for Dr. Peking University, and she is more proficient in both Chinese and English. With a good appearance, she has also crossed the border many times. She once made a guest appearance as a pork girl in the movie "Thorn Mausoleum" and even appeared in the short film "Charm Sound" with friendship.

Mi Li and Chen Daoming took a group photo at the shooting scene of "Thorn Mausoleum"

Normal work clothes are like this ~

Mi Li visited the barracks.

six.Rachel became popular because of the title of "Squire Liu"

1986
Rachel, born in, is the anchor of CCTV’s "NBA Frontline". With her sweet appearance, she is deeply loved by male fans with her natural girl-next-door temperament and is called the most beautiful sports female anchor in CCTV history. However, she
There is also a louder nickname-"Squire Liu". It turned out that during the World Cup in Brazil, which team rachel wore was out, and her strong ability of "reverse prediction" made her an instant hit on the Internet.

rachel

7. Qin Fang was once the top three in the beauty contest.

On July 26th, 2011, Qin Fang, the anchor of CCTV, choked to broadcast the rear-end collision of a bullet train after introducing Yi Yi’s situation in the program, which attracted the attention of netizens. Qin Fang, who hosted International News and Weather Information, was named one of the top ten beauty anchors of CCTV earlier because of her elegant temperament. With a delicate appearance, she has participated in many beauty contests, not only being among the top three beautiful girls in Chongqing, but also winning the title of Chongqing Division of the New Silk Road Model Contest. In addition, Qin Fang was the top student in the college entrance examination. She was admitted to Communication University of China as the top student in Chongqing Arts.

Anchor platform

Qin Fang photo

Life photo

8. Hu Die

Hu Die was born in Hanzhong, Shaanxi Province on February 16th, 1983. In June, 2005, Hu Die graduated with the first grade in comprehensive assessment, gave up the insurance research and entered Beijing TV Station, and embarked on the road of news broadcasting. In July 2009, he began to host the news program "Chao Wen Tian Xia", which was broadcast live by CCTV-1 and CCTV- News. Won the "2010 Famous Host" of CCTV. It was only recently exposed that Lu Chuan was certified.

Hu Die

9. Ma Fanshu

Ma Fanshu was born in Harbin on November 6th, 1993. On the evening of November 24th, 2014, Ma Fanshu made his first appearance as the host in CCTV’s newly revised Football Under the World. In the program, Fan Fan, who appeared in a green dress, cooperated with Duan Xuan tacitly and showed humor.

ma fan shu

(Observer Network Integrated International Online and other media)

　　Cctv newsAccording to the National Bureau of Disease Control and Prevention, research shows that myopia is the result of many factors, and children and adolescents are generally susceptible. On the basis of considering multiple causes, such as environmental and behavioral factors, genetic factors, eye evolution law and social and cultural factors, this paper puts forward intervention techniques for children and adolescents’ myopia, and adopts three-level prevention strategies to implement comprehensive public health intervention measures to prevent, reduce and slow down the occurrence and development of children and adolescents’ myopia.

　　First, the prevention of public health intervention technology

　　(1) Monitoring, evaluation and intervention of myopia risk behaviors.

　　1. Students’ eye behavior evaluation. For students of different school ages, the eye behavior evaluation form for kindergarten and primary school students in grades 1-3 (parent version) (attached table 1) and the eye behavior evaluation form for primary school students in grades 4-6 (student version) (attached table 2) were used to evaluate the eye behavior of kindergarten to middle school students, and to identify the risk behavior factors that affect myopia of children and adolescents, such as insufficient outdoor activities, excessive use of electronic products, lack of sleep or large social time difference, reading and writing.

　　2. Application of evaluation results. According to the specific risk factors, teachers and parents should change the bad eye behavior of children and adolescents (the contents listed in Schedule 1 and Schedule 2 can be used as the contents of health education and behavior standards).

　　3. Promote good eye use behavior with appropriate technology. Actively develop or use the existing appropriate technologies for myopia prevention and control, and apply them to promote the development of children and adolescents’ rational eye use behavior. For example, the height of the desk and chair measuring ruler (desk and chair deployment measuring ruler), correct reading and writing posture wall chart, light monitor, eye relaxation exercises, etc.

　　(2) The visual environment of schools, families and communities has been improved.

　　1. The construction of school visual friendly environment. Schools should provide students with good lighting and lighting environment according to the Hygienic Requirements for Prevention and Control of Myopia in School Supplies for Children and Adolescents (GB40070-2021). Each class should be equipped with desks and chairs to allocate measuring ruler, measure the height range of students regularly and adjust the desks and chairs in time. Each classroom should be equipped with adjustable desks and chairs or 2-3 types of desks and chairs according to the height range of students. The desks and chairs of the same type can be placed in columns, and the height of desks and chairs should be adjusted individually once every semester according to the height and sitting height of students. According to the perspective of students’ seats, the lighting situation in the classroom and the changes of students’ eyesight, the school will change students’ seats at least once a month. Multimedia classrooms should choose large-size projectors or computer screens. Under the same screen size, choose products with high screen resolution.

　　2. Building a family visual friendly environment. The desk should be placed so that its long axis is perpendicular to the window. When studying during the day, natural light enters from the opposite side of the writing hand to avoid direct sunlight. The average illumination value of the desktop is not less than 300lx. Parents should adjust the height of desks and chairs regularly according to the growth and development of children and adolescents. Children and adolescents should be equipped with desk lamps that have passed the national compulsory product certification (CCC certification), and children and adolescents should turn on the ceiling lights in addition to using desk lamps when studying at night. When online learning is needed, electronic products with large screen such as TV and desktop computer should be selected, and electronic products with high screen resolution should be selected under the same screen size. The viewing distance of TV is not less than 4 times the diagonal distance of the screen, the horizontal viewing distance of computer is not less than 50cm, and the viewing distance of mobile phone is not less than 40cm. Children and teenagers don’t put televisions and computers in their bedrooms. They use dark curtains at night and don’t turn on the night light to sleep. Guide children and adolescents to avoid or reduce exposure to high brightness and blue light-rich electronic products at night.

　　3. Community visual friendly environment construction. Green space can prevent or slow down the occurrence and development of myopia in children and adolescents by increasing outdoor time and reducing screen time. Reasonable green land is set up in the community, with certain activity facilities, which is suitable for carrying out all kinds of parent-child outdoor activities. The night light environment of residential quarters should comply with the current national standards. Except for indicative and functional signs, advertising lighting is not suitable for residential buildings (districts). The glare limit of night lighting lamps in residential and pedestrian areas, the maximum allowable value of illumination on the outer surface of windows of residential buildings, and the maximum allowable value of luminous intensity of night lighting lamps in the direction of rooms should be strengthened in accordance with the Planning Standard for Urban Lighting Construction (CJJ/T 307-2019).

　　(3) 2 hours of outdoor activities and 1 hour of physical exercise during the day.

　　1. Ensure 2 hours of outdoor activities every day and 14 hours every week. According to the Grade and Description of Recommended Contents for Prevention and Control of Children and Adolescents’ Myopia by Outdoor Activities (Attached Table 3), school-age children have two hours of outdoor activities during the day, which are carried out inside and outside the school. The insufficient time for daytime outdoor activities on school days should be made up on weekends and reach at least 14 hours of daytime outdoor activities every week. Kindergarten children advocate three hours of outdoor activities during the day and put more conservation content outdoors.

　　2. Implement one-hour daytime outdoor activities on campus. The school arranges a 30-minute recess activity in the morning and afternoon, emphasizing outdoor activities and not sticking to the form and content of activities. Try to go to physical education class outdoors, and some indoor courses, such as class meetings, can be held outdoors. Set up outdoor activities interest groups and actively carry out various forms and rich contents of outdoor activities. Arrange extracurricular sports homework and provide high-quality exercise resources. Teachers should promptly remind students and class "eye guards" to supervise students to walk out of the classroom for 10 minutes between classes.

　　3. Grasp the one-hour outdoor activities outside school. It is recommended that children and adolescents have a full or staged walking to school, and junior students should be accompanied by their parents. Parents encourage and actively participate in children’s extracurricular activities, complete extracurricular sports homework, and go outdoors and go to nature with their children on weekends and holidays. Schools, parents and students cooperate, actively explore the development of peer-to-peer school groups, increase the time of outdoor activities during the day, enhance exchanges between students, and reduce parental companionship.

　　4. Exercise for 1 hour every day. According to the requirements of myopia prevention and control, children and adolescents should be outdoors for 2 hours every day, but according to the requirements of physical and mental health promotion, children and adolescents should be engaged in moderate to high-intensity physical activities for at least 60 minutes every day, mainly aerobic exercise. High-intensity aerobic exercise and muscle and bone strengthening exercise should be carried out at least three days a week. Taking physical education class as the starting point, the school guides students to carry out physical exercise, and brings the daytime outdoor physical exercise time into the range of 2 hours of daily outdoor activities.

　　(4) Health education for all teachers, students and parents.

　　1. Strengthen teachers’ health education ability. The school cooperates with public health professional institutions and medical colleges and universities to organize teachers to carry out health education and training on myopia prevention and control, so that teachers can master myopia prevention knowledge. Trained teachers popularize myopia prevention and control knowledge through health education classes, parent-teacher conferences, and myopia prevention and control theme class meetings.

　　2. Improve students’ eye health literacy. Students should receive at least one health education course or theme class meeting for myopia prevention and control every semester to learn the knowledge and skills of eye protection in like eyes. Teachers guide students to make handwritten reports on myopia prevention knowledge, and carry out knowledge contests, group discussions, role-playing, etc. to improve students’ myopia prevention and control ability. Students will bring the knowledge of myopia prevention and control they have learned and mastered in school back to their families, which will influence their parents and give play to the role of "small hands and big hands" in myopia prevention and control. Advocate the school to train an "eye protector" or preacher in each class, publicize the knowledge about vision protection, and urge students to go out of the classroom during recess.

　　3. Enhance parents’ awareness of vision protection. Parents should take the initiative to learn like eyes’s knowledge and skills of eye care, educate and urge their children to use their eyes scientifically, improve family lighting, adjust the height of desks and chairs, and correct the thought and behavior of "paying more attention to treatment than prevention", so as to realize the myopia prevention and control situation of "holding hands with big hands".

　　4. Increase the construction of social supportive environment. Mobilize experts to enter schools and society, popularize scientific knowledge of myopia prevention, and educators and children and adolescents identify scientific vision correction measures. Experts and scholars actively compile and publish popular science materials and books on myopia prevention and control health education, and make new media health education materials. Professional institutions, schools and communities should join forces to promote the dissemination and sharing of health education information and improve the coverage and efficiency of health education by using mobile health platforms or technologies, such as smart phone applications, SMS services and telephone intervention. Severely crack down on the false and illegal marketing and propaganda behavior of children and adolescents’ myopia prevention and control products.

　　Second, the secondary prevention of public health intervention technology

　　(1) Vision health screening.

　　Establish a regular vision screening system, carry out poor vision screening, the screening frequency is not less than 2 times per academic year, standardize the recording of inspection contents, and establish information management of vision health. Pay attention to the standardization of screening and filing process, strengthen quality control, and implement closed-loop management of grading after screening. With the help of artificial intelligence technology, the degree of automation of vision screening is improved, and the work efficiency and popularization are improved.

　　(2) Early warning management of myopia.

　　Timely analysis of children’s and adolescents’ visual health, early screening of myopia and other ametropia, dynamic observation of the development and changes of children’s and adolescents’ refractive status in different periods, early detection of myopia tendency or trend, establishment of myopia early warning model, and formulation of applicable and feasible intervention measures to slow down the rapid and severe development of myopia. Combined with vision screening and file establishment, it is suggested that children and adolescents with normal vision but with high risk factors of myopia or insufficient hyperopia reserve should change their high-risk behaviors, and schools, families and communities should cooperate to increase outdoor activities during the day, reduce the behavior of using eyes at close range and improve the visual environment. For those with pre-myopia, we should give high-risk early warning and focus on intervention. It is suggested to go to professional institutions to receive professional examinations such as medical optometry, make a clear diagnosis and take corresponding measures in time to control and slow down the occurrence and development of myopia in children and adolescents.

　　Three, three prevention of public health intervention technology

　　(1) scientifically correct myopia.

　　For children and adolescents who are already nearsighted, parents should be instructed to take their children to professional institutions for examination and correction in time. If it is determined that they need to wear glasses after professional examination, parents should choose glasses with appropriate degrees for their children according to the requirements of doctors or optometrists, wear glasses according to the doctor’s advice, and conduct regular follow-up.

　　(2) Preventing and controlling the aggravation and complications of myopia.

　　For children and adolescents with early onset of myopia or rapid development of myopia, specialists should adopt optical correction, drug correction or traditional Chinese medicine to slow down the progress of myopia. Parents should go to regular medical institutions, choose measures suitable for their children under the guidance of doctors or optometrists, and use them according to the doctor’s advice. For children and adolescents with fundus pathological changes and other complications, parents should take their children to professional medical institutions for treatment by specialists in time.

　　Fourth, the specific implementation measures

　　(1) Grasp early and small, and implement it in the whole life cycle.

　　1. The implementation of vision health management pass forward. Early detection of the shortage of hyperopia reserves and timely intervention measures are the key to move forward the prevention and control of myopia for children and adolescents. Move forward in the prevention and control cycle, grasp early and grasp small; Move forward in the prevention and control link, from treatment to early warning; Move forward in the sense of prevention and carry out early intervention for students with healthy vision. Move the myopia defense line forward to pregnancy, infants and preschool stage. Strengthen parents’ and teachers’ awareness of myopia prevention and control, and regard infants, preschool children and lower grades of primary schools as the key links of myopia prevention and control.

　　2. Promote the prevention and control of myopia in the whole life cycle. From the perspective of the whole life cycle, it focuses on the potentially sensitive periods such as pre-pregnancy, pregnancy, infants, preschool, school age, etc., so as to reduce the impact of biological, environmental and behavioral risk factors in each period on the visual health of children and adolescents. From pre-pregnancy, pregnancy and perinatal period, develop a healthy lifestyle, monitor health status in real time, and reduce the risk of gestational diabetes, hypertension and premature delivery, so as to reduce the risk of myopia in children and adolescents. Implement the "Standard for Eye Care and Vision Examination Services for Children Aged 0-6", establish children’s eye health files, and make one file for each person, which will be transferred in real time with children and adolescents entering school. Popularize the scientific knowledge of children’s eye care to parents, and guide families to actively accept children’s eye care and vision examination services. Carry out health guidance, don’t touch the electronic screen before the age of 3, preschool children should try to avoid touching and using video electronic products, reduce the time of using their eyes at close range, increase the time of outdoor activities, maintain correct reading and writing posture, develop good sleep habits and ensure adequate and regular sleep. At school age, we should advocate at least one hour of outdoor activities in and out of school every day, reduce long-term close eye use and maintain adequate regular sleep. Implementing myopia prevention and control from the whole life cycle can realize the forward movement of myopia prevention and control and improve the vision health in the whole life cycle.

　　(B) the combination of prevention and control, the whole population and key population strategy.

　　1. The whole crowd strategy. Children and adolescents are generally susceptible to myopia, so it is necessary to take the whole population strategy to prevent and control myopia, carry out health education on myopia prevention and control, increase outdoor activities during the day, reduce long-term use of eyes at close range, build a visually friendly environment and other public health intervention measures to do a good job of prevention and control at the first level of the whole population.

　　2. Key population strategy. According to the stages of myopia, corresponding intervention measures should be carried out to reduce the risk of rapid development of myopia. For those with normal vision and sufficient hyperopia reserve, prevent the hyperopia reserve from being consumed prematurely. The main goal of prevention and control of myopia is to slow down the occurrence of myopia. Low myopia should control the progress of myopia, while high myopia should prevent fundus lesions and reduce the risk of blindness.

　　(three) demonstration and guidance, strengthen the prevention and control and intervention process and effect evaluation.

　　1. Pilot first, demonstration leading. Construct a six-in-one comprehensive prevention and control strategy of government leadership, responsibility of competent departments, monitoring of professional health institutions, school leadership, family cooperation and students’ subjectivity. Disease control institutions at all levels rely on the monitoring of common diseases and health influencing factors of students and the appropriate technology pilot platform to implement the monitoring of myopia of children and adolescents, guide and coordinate relevant parties to implement effective comprehensive public health intervention measures, and take outdoor activities and sports activities as the main starting point to realize the prevention of multiple diseases.

　　2. Pay attention to process and effect evaluation. Disease control institutions at all levels should regularly carry out students’ vision monitoring, deeply analyze the monitoring data over the years, and report the main students’ health problems and suggestions found in the monitoring to the local government in time. Based on the practical research method, the transformation and application from theory to practice can promote the implementation and dissemination of intervention actions. Conduct process and effect evaluation, introduce the implementation research framework and theoretical model, such as the process and effect indicators of comprehensive public health intervention for myopia prevention and control and its collection method (Table 4), comprehensively evaluate the accessibility, effectiveness, applicability and sustainability of intervention actions from the individual level and organizational level, and systematically evaluate the implementation effect of comprehensive public health intervention for children and adolescents with myopia.

　　

　　On August 2, US Speaker of the House of Representatives Pelosi insisted on visiting Taiwan, China despite China’s strong opposition and solemn representations. The People’s Liberation Army of China countered with practical actions. Since August 2, it has launched a series of joint military operations around Taiwan Island. From 12: 00 on August 4 to 12: 00 on August 7, it conducted important military exercises in the designated sea areas and airspace, and organized live-fire shooting. Why is the area of the China People’s Liberation Army’s training exercise so demarcated? What are the characteristics of the training content and participating troops? What do you want to achieve through this training? Meng Xiangqing, a professor at National Defense University, analyzed and interpreted the related issues one by one.

　　• On August 2, US Speaker of the House of Representatives Pelosi insisted on visiting Taiwan, China despite China’s strong opposition and solemn representations. After the incident, People’s Republic of China (PRC)’s Ministry of Foreign Affairs, State Councilor and Foreign Minister Wang Yi, the National People’s Congress Standing Committee (NPCSC)’s spokesperson, the Central Committee of the Communist Party of China Taiwan Province Work Office, Chinese People’s Political Consultative Conference Foreign Affairs Committee and Ministry of National Defense’s spokespersons immediately issued statements, statements and talks, which were firmly opposed and severely condemned.

　　• Late at night on August 2nd, China Xie Feng, Vice Minister of Foreign Affairs was ordered to urgently summon U.S. Ambassador to China Burns to make solemn representations and strong protests to the U.S. side on behalf of the China administration over Speaker Pelosi’s visit to Taiwan, China.

　　• On the evening of August 2, the People’s Liberation Army of China announced that it would conduct important military exercises in the designated sea areas and airspace from 12: 00 on August 4 to 12: 00 on August 7, 2022, and organize live-fire shooting. Beginning on the evening of August 2, the Eastern Theater launched a series of joint military operations around Taiwan Island, and conducted joint air and sea exercises in the northern, southwest and southeast airspace of Taiwan Island.

　　• On August 3rd, the Eastern Theater was located in the northern, southwest and southeast sea and airspace of Taiwan Island, and organized a practical joint exercise with the participation of the theater navy, air force, rocket army, strategic support force, joint logistics support force and other forces, focusing on joint blockade control, sea assault, land attack, air combat and other subjects.

　　• On August 4th, the Eastern Theater organized troops to carry out an unprecedented practical training in the sea and airspace around Taiwan Island, and successfully carried out long-range firepower and conventional missile firepower live-fire shooting in the scheduled sea area, all of which hit the target accurately.

　　• On the afternoon of August 4th, Senior Colonel Shi Yi, spokesman of the Eastern Theater, said that the whole live-fire launching training task had been successfully completed, and the relevant air and sea control had been lifted.

　　What breakthroughs have our army made in the training activities around Taiwan Island this time?

　　Meng Xiangqing, a professor at National Defense University, said: The training activities around Taiwan Island are really different from the previous training activities aimed at "Taiwan independence" in the history of our army. There are three main features:

　　The first one is approaching Taiwan Island. This time, whether it is the six designated areas, the whole live-fire shooting, or our training activities, it is very close to Taiwan Island. This has never happened in the past. In the past, we were mainly along the mainland, but this time we directly zoned around Taiwan Island, and even zoned our target to the east of Taiwan Island. It should be said that such a plan has a great deterrent effect on "Taiwan independence".

　　The second is Heweitai Island. This is also unprecedented. We said that we had never approached Taiwan Island in the past, let alone encircled Taiwan Island. The six major areas we have delineated closely surround Taiwan Island, which can be jointly blocked and controlled, and can also strike at the "Taiwan independence" forces. Therefore, such an encircling Taiwan island is like a chain. If six areas connect it into a line, it is equivalent to trapping "Taiwan independence" in the island. So this is an unprecedented island in the history of our army.

　　The third is to deter the intervention of external forces. In fact, two areas to the north of this area are close to Okinawa, while the two areas to the south are guarding bashi channel, so bashi channel can be jointly blocked. What does this mean? Bashi channel is the only place to pass in and out of the South China Sea, which has a direct deterrent effect on external forces.

　　Why did you choose these six places on the map as the training areas?

　　Meng Xiangqing, a professor at National Defense University: Actually, it contains profound connotations. The first area is the southeast of Pingtan Island. This is the narrowest part of the Taiwan Province Strait, which actually completely breaks the so-called "central line of the Strait". The concept of "the central line of the strait" was drawn by Americans. We never recognized the so-called "central line of the strait", and there is no such "central line of the strait" in the eyes of the People’s Liberation Army. This time, I think it completely broke the so-called "strait center line." Pingtan Island in the east is the narrowest place from this strait, and two-thirds of the so-called "strait midline" is on the east side of the "strait". Therefore, the designation of this area this time has profound significance. Look at the two areas in the north, one is the northeast and the other is the north, just off the coast of Keelung Port in Taiwan Province. This means that a blockade can be imposed on Keelung Port. Look at this area in the east. This area is the east of Taiwan Island. In front of it are two important military bases of Taiwan Army, one is Hualien and the other is Taitung. Hualien has a Jiashan base, which is the underground hangar of Taiwan military. It is said that in order to avoid the first attack of the People’s Liberation Army, it can accommodate more than 400 planes, and it is also known as the so-called largest underground hangar in the Far East. The establishment of such an area in the east has an important direction.It is a direct attack on the two military bases of the Taiwan military. Look at these two districts in the south. One is the southeast of Kenting in Taiwan Province, which is guarding bashi channel. Bashi channel is the gateway to and from the South China Sea, so bashi channel can be blocked. Look at the last area, southwest of Taiwan Province, which happens to be a sea and airspace in Zuoying, Kaohsiung, Taiwan Province, and it has formed a trend of closing the door to "Taiwan independence". So connect the six areas into a line, just like a noose, and the knot of the noose is just in the southwest direction.

　　What changes have been made in this exercise compared with 1996?

　　Professor Meng Xiangqing of National Defense University:There are several changes. The first change is that the exercise in 1996 was also a deterrent to "Taiwan independence", mainly aimed at a series of "Taiwan independence" actions of Lee Teng-hui’s visit to the United States in 1995. That exercise was mainly on the coastal line near the mainland, and this time it was mainly near Taiwan Island. The second change is that the intensity and intensity are much higher than that. This exercise can be said to be the strongest, strongest and most deterrent in our previous exercises in the Taiwan Strait crisis. For example, our missiles fired directly across the island, which happened to cross the area where Patriot missiles in Taiwan Province were densely deployed. At the same time, it also achieved a precise strike under the nose of the American Aegis ship, forcing the American "Reagan" aircraft carrier to retreat for hundreds of kilometers. The third change is to organize a shocking exercise of aircraft carrier formation for the first time and build a three-dimensional combat platform at sea. When the aircraft carrier formation goes out, there should be nuclear submarines operating underwater. Although it is dominated by the eastern theater, other theaters are also involved. The subjects of the exercise include joint blockade, attack on the sea, assault on land, and air combat. Its actual combat background is very strong. Although this is a training exercise, it can be transformed from training to actual combat at any time.

　　On August 4th, the Eastern Theater Air Force and the Eastern Theater Naval Air Force dispatched hundreds of fighters, bombers and other multi-type fighters to take off in formation, and went to the airspace in the north, southwest and southeast of Taiwan Island to carry out joint reconnaissance, air assault, support cover and other tasks day and night. More than 10 escort ships continued to be deployed in the waters around Taiwan Island, carrying out joint sealing and control operations, sweeping the sea for the fire test area, and cooperating with neighboring forces to conduct reconnaissance and guidance.

　　At about 13: 00, the Army troops of the Eastern Theater launched a long-range fire live-fire shooting in the Taiwan Province Strait, which struck a specific area in the eastern part of the Taiwan Province Strait accurately and achieved the expected results. After receiving the combat mission in the morning, in the mission area of an artillery brigade of the Army in the Eastern Theater, a number of new long-range box rockets were maneuvered to the launching position according to orders. After arriving at the shooting area, the detachment quickly completed the preparations for live-fire shooting such as rocket loading and shooting data binding. As the commander gave the password, many shells rushed to the target sea area and hit the target accurately. After receiving the combat mission, the officers and men of a missile brigade of the Rocket Army in the Eastern Theater quickly completed the preparations for combat mobilization, and the troops were ordered to move to the scheduled combat area. After arriving at the predetermined area, the launching unit quickly hides and stands by to get ready for launch. After receiving the launch command, the trumpeter quickly started to operate, erect the missile and bind the parameters.

　　At about 15 o’clock, with the commander’s command, the missiles rose in turn and stabbed the sky. The Rocket Force of the Eastern Theater launched a multi-regional and multi-model conventional missile fire assault on the scheduled sea area off the eastern part of Taiwan Island, and all the missiles hit the target area. Later, Shi Yi, a spokesperson for the Eastern Theater, said that the entire live-fire launch training mission had been successfully completed, and the relevant air and sea control was lifted.

　　What are the characteristics of this long-range rocket launcher?

　　Professor Meng Xiangqing of National Defense University:The biggest hot spot this time is live ammunition. Live-fire shooting, one is the army’s long-range rocket launcher, and the other is the rocket army’s regular pilot test firing. Long-range rockets are different from ordinary rockets: the first one is long range. From tens of kilometers to hundreds of kilometers, it can cover the whole island of Taiwan Province. It was the shelling of Kinmen in 1958, and now it can cover the whole island. In fact, it also sent a clear signal to Taiwan independence that long-range rockets can cover the whole island, not to mention other weapons. The second is high accuracy. New army long-range rockets are generally equipped with guidance devices, which have high launch density and high launch accuracy. You can call whenever you want, and you can call wherever you want. The third is cost-effective. The ammunition of long-range rocket launcher is very different from precision guided and medium-and long-range missiles. General cruise missiles, tens of millions of RMB, and long-range rocket ammunition are much cheaper. That is to say, as long as we rely on the system support of our industrial and military departments, we can produce it quickly. This is the third feature of long-range rocket launchers. The fourth is very mobile. Long-range rocket launchers are all highly mobile vehicles to carry, which are highly mobile, stop when they say it, and fight when they say it, and its survival rate is relatively strong. I think this is the outstanding feature of the new long-range rocket launcher!

　　What are the characteristics of the conventional missiles launched this time?

　　Professor Meng Xiangqing of National Defense University:This time, our conventional missiles have also performed well. The media in Taiwan Province have blown up the pot, and they have reported that China’s medium-and long-range missiles and conventional missiles have flown over Taiwan Province Island. Even Taiwan Province’s defense department has come out to reassure the people, saying that everyone should not be nervous and panic, because their missiles are very high and will not pose a threat to the island, which also reflects the guilty conscience of Taiwan Province’s defense department. This time, the rocket army’s conventional missiles are very accurate. It has several characteristics: the first is precision strike; The second one has strong penetration ability, which can break through the anti-missile system; The third is that it has a strong viability. This time, we often guide a lot of mobile launches, and we can go after the fight.

　　What kind of development state can we see from this training operation?

　　Professor Meng Xiangqing of National Defense University:In the past ten years, the development and upgrading of our army’s weapons and equipment has been very fast. For example, the army’s equipment that everyone is concerned about is becoming more and more advanced, and large surface ships are emerging like Lower jiaozi. We often see the so-called Dongfeng Express, which means that our conventional Dongfeng series missiles and various types of series missiles are becoming more and more complete, which constitutes such a systematic capability.

　　What style did our officers and men show during this training activity?

　　Professor Meng Xiangqing of National Defense University:The strength of our army can be classified from two major aspects: one is the hard strength of our army, that is, the level of weapons and equipment and the information-based combat capability that everyone sees, which are all hard strength. One is the soft power of our army, such as the commanding ability and level of commanders, the spiritual outlook of officers and men, and our firm belief, determination and will. This is also a very important aspect. I think there is a saying that the artillery listens to my command and I listen to the party’s command, which reflects that the officers and men of our army have taken on a new look in the new era.

　　On August 3rd, when asked by reporters about Pelosi’s visit to Taiwan Province, UN Secretary-General Guterres affirmed his adherence to the one-China principle.

　　UN Secretary-General Guterres:Our position is very clear. We abide by the resolutions of the United Nations General Assembly and the one-China principle. Everything we do is guided by this principle.

　　The Cambodian Ministry of Foreign Affairs and International Cooperation, which holds the rotating presidency of ASEAN, issued a statement saying that ASEAN member countries support the one-China principle and call for upholding the UN Charter and the Treaty of Amity and Cooperation in Southeast Asia.

　　On August 4th, Tan Kefei, spokesman of the Ministry of National Defense, made a speech on our series of military countermeasures. China’s army means what it says. The Eastern Theater of the Chinese People’s Liberation Army organized multi-service and multi-service joint targeted drills such as sea assault, land attack and air combat in the sea and airspace around Taiwan Island, and organized live-fire shooting with precision weapons, which was a solemn shock to the United States and Taiwan.

　　It is not only "Taiwan independence", not only the separatist forces on the island, but also the United States that will be shocked by this training exercise.

　　Professor Meng Xiangqing of National Defense University:Our exercise is indeed strongly targeted. From a historical perspective, the United States has been saying one thing and doing another for so many years. We often talk about the one-China policy, and we have repeatedly said that it has not changed until the Biden administration. Moreover, Biden made a promise and statement called "Four No’s and No Objections", that is to say, the one-China policy will not change, nor will opposing Taiwan Province’s "independence". But if we take a closer look, the United States is saying one thing and doing another. Say no change, in fact, we see that Pelosi, as the No.3 powerful figure in the United States, and the US Congress, as an important part of the US government, made a surprise visit to Taiwan Province, which seriously violated Three Joint Communiqués’s regulations and the one-China principle, seriously damaged Sino-US relations and relations between the two militaries, and also seriously shaken the political foundation for the development of relations between the two countries. In addition to Pelosi’s visit, after the establishment of diplomatic relations between China and the United States in 1979, the United States immediately issued three joint communiques, and soon the US Congress passed the so-called Taiwan Relations Act, which itself runs counter to the spirit of the three joint communiques. Therefore, in the decades since the establishment of diplomatic relations between China and the United States, the United States has continuously sold weapons to Taiwan Province, and has sold them more than 100 times. We see that arms sales to Taiwan are high-end, continuous and normal. In addition, there are many others. For example, the United States keeps internationalizing the Taiwan Province issue in the international community and wants to include Taiwan Province as an observer member of the World Health Organization.But also a few countries and forces that support or encourage the international community to support such actions of Taiwan Province. For example, the establishment of the "Taiwan Representative Office" in Lithuania is supported and encouraged by the United States. All these show that as long as the United States does not change its style of saying one thing and doing another, and does not change its cold war mentality and hegemonic thinking, I think it is difficult to stabilize Sino-US relations.

　　At present, more than 100 countries in the world have expressed their support for China’s position and opposed the provocative behavior of the United States. Including the United Nations, what do you think of this universal response from the international community?

　　Meng Xiangqing, a professor at National Defense University: We say that the principle of one China has become the general consensus of the international community, and adhering to the policy of one China has also become the basic norm of international relations. As early as October 25, 1971, the United Nations adopted the famous resolution 2758. This resolution clearly states that the government of People’s Republic of China (PRC) is the sole legal government and Taiwan Province is an inalienable part of China. This has formed the basic norms of international relations, and we have established diplomatic relations with 181 countries. The most important political basis for these 181 countries to establish diplomatic relations is that they all recognize the one-China policy, so one China is also a world trend. The general trend of the world is vast, those who follow it will prosper, and those who go against it will die.

　　The one-China principle is the general consensus of the international community, and national reunification is also the general trend.

　　Professor Meng Xiangqing of National Defense University:You are right. In fact, it is not only the basic norm of international relations, but also the world trend. We say that the realization of national reunification is an irresistible trend, and no one or force can stop it, nor can we provide any opportunity for anyone or force to split China. This is our clear attitude. We talked about a series of countermeasures we have taken this time, especially the major military countermeasures, which not only showed our determination and will to resolutely defend the sovereignty and territorial integrity of the country, but also showed that we in Chinese kept our word, and we kept our word and will do so in the future. However, our major policy of peaceful reunification and "one country, two systems" has not changed. We still have to adhere to such a major policy, because peaceful reunification and "one country, two systems" are most beneficial to the people on both sides of the strait and to the fundamental interests of the Chinese nation. As long as there is a glimmer of hope for peace, I think everyone should make 100% peace efforts. But on the other hand, we can’t allow any attempt to split China. Therefore, historical experience has repeatedly proved that only when you can fight can you make peace, and it is more necessary to prepare for peace. For a country and a nation, both peace and preparation should be hard. For an army, there is only one kind of military duty, that is, preparing for war. Therefore, we say that we did not, do not and will never promise to give up the use of force. Moreover, in order to achieve national reunification, we have made the greatest peaceful efforts.But we will never promise to give up using force to solve this problem, provided that Taiwan Province cannot be independent and external forces cannot interfere.

Google recently officially released Android 11. For this latest generation of Android system, the new functions and features brought by it are naturally valuable. However, considering that the native Android functions are often magic change in China, the impact on domestic users is limited. The biggest impact of Android 11 on the domestic ecology may still be some underlying changes, which are rarely mentioned.

Android 11 is coming.

Yes, the bottom of Android 11 has changed a lot! The drastic changes brought about will profoundly affect the vast number of users. Let’s talk about it today.

Brush machine no longer turns brick? Recovery partition is history!

If you are an Android brush player, you must know the term Recovery. This is the mode used to restore the system in the Android system. Whether it is the official upgrade system of the manufacturer or the player swiping the third-party ROM, it usually needs to be done through Recovery. In the Android machine, there is also a special partition to place Recovery, but this will become history in Android 11.

Recovery, which is familiar to brush players.

In the traditional Recovery upgrade mode, if the data written into the System partition is wrong, the machine may not start. Brush players should be familiar with this kind of "brick-changing" situation, and even the manufacturer OTA will occasionally "brick-changing". How to avoid it? In fact, in recent years, the new Android machine uses the A/B partition mechanism, and many Android machines no longer need Recovery to guide the upgrade.

To change the startup mode of Android system, it is necessary to boot directly through Boot after Recovery and A/B partition mechanism.

In the Android machine with A/B partition mechanism, when the system needs to be upgraded, the new system will be written into one of the partitions, and it will be started from that partition after successful writing. If the writing fails or the startup fails, it will be started from the original partition, which is equivalent to the mutual backup of two system partitions, greatly reducing the failure rate of system upgrade.

The mechanism of Android 11 is similar. The machine with Android 11 pre-installed in the factory cancels the Recovery partition and changes the A/B partition mechanism to some extent. When Android 11 needs to upgrade the system, it will compare the data of the new system with the current system data, and write the difference into another partition instead of the system partition; After that, the system is started with the new data. If the system starts successfully, the differential data will be written into the system partition. If it fails to start, the differential data will be discarded and started with the data of the original system partition.

The new mechanism of Android 11 not only has the reliability advantages of A/B partition, but also does not need to occupy a lot of extra space like A/B partition. In any case, the Recovery partition has been abandoned. The machine with Android 11 pre-installed has no Recovery partition at the factory, and the boot partition has taken on the work of the previous Recovery partition. Recovery is an indispensable tool for brushing machines. Where should brushing players go? I’m afraid we have to find another way out.

Android 11 is the easiest Android to upgrade ever?

We know that Google has been making efforts to solve the problem of system fragmentation and strive to upgrade the latest version of Android. To this end, Google has made a lot of efforts, such as implementing the Project Treble mechanism in Android 8.0, separating the system (Android OS framework) from the hardware implementation, and then manufacturers can independently push the new version of Android for devices without re-adapting the driver.

Project Treble separates Google’s Android system framework from drivers provided by hardware vendors.

Project Treble greatly simplifies the upgrade process of Android system, but it is not enough. In Android 10, Google implemented Project Mainline to further subdivide and modularize the system. In Android 10, 14 system components are Mainline, and system components such as media decoder, rights controller, and network components can be updated through the App store like ordinary apps-many friends found that the GPU driver of Android machine can be updated independently this year, thanks to this.

Qualcomm announced that GPU drivers can be updated separately.

In Android 11, Google further subdivides Android components, and the number of Android component modules reaches as many as 20, so the system maintenance of Android will become more flexible than ever. Not only that, Google will also implement the restructuring into the system kernel, and the Linux kernel upgrade of Android will become more flexible.

In the current Android system, Linux kernel upgrade generally needs to go through three steps. First, Google selects a version of Linux LTS as the Android kernel, and puts the Patch； needed for Android to run; Then, Google submitted this kernel to SoC suppliers such as Qualcomm, and the suppliers built it into a kernel adapted to SoC again; Finally, Samsung and other equipment vendors adapt the kernel to different components and Patch the kernel again, making the kernel a version that can really run on Android.

The traditional Linux kernel upgrade process of Android system needs many links, which is very troublesome.

Due to the cumbersome steps, once the current Android machine leaves the factory, the Linux kernel rarely changes. Even for Google’s Pixel device, the kernel is still just the older Linux 4.14.

However, in Android 11, the situation has changed. Google has modularized the system kernel, and the kernel is divided into Generic Kernel Image(GKI) and other GKI modules. If you want to upgrade the Linux version, Google can push GKI directly for Android, and upgrade GKI directly for mobile phones, so you don’t have to go through the complicated steps from SoC manufacturers to mobile phone equipment manufacturers.

Since Android 11, the kernel has been modularized, and a GKI kernel can be used in a large number of Android machines on the market.

It is understood that this feature of Android 11 is required to be enforced on devices with a kernel version higher than Linux 5.4. It can be said that if the device kernel version of Android 11 is above Linux 5.4, it may be the easiest Android to upgrade in history.

Android storage directory folder chaos completely solved?

I believe many people have found that after using Android for a long time, there will be many strange folders in the storage directory, which are generated by various apps. This is actually a problem left over from history.

Where did all the messy folders in the Android storage directory come from?

The internal storage directory of Android was once very small. For example, the ROM of the classic Milestone is only 512M, and the storage space needs to be expanded with an sdcard. Therefore, Android App often saves files in the external storage directory (namely the SD card directory). However, Android did not provide the specification of external storage directory before version 4.3. App used to create its own folder in the sdcard directory at will, and this habit has been preserved until now.

Now, although Android has established a storage specification for the sdcard directory, for example, the Android system stipulates that if an App wants to create a folder in the internal storage space, it needs to be created in the/data/directory, and in the external storage space, it needs to be created in the /sdcard/Android/data/ directory. However, this specification is not mandatory. For various reasons, such as using the third-party SDK, many apps still build their own folders under the sdcard directory, which leads to the confusion of the Android storage directory.

In Android 11, folder chaos is finally expected to be completely solved. Android 11 will no longer allow apps to create directories and files in sdcard, and apps can only write data to private folders in specific directories. At present, some apps have begun to prepare for this. For example, the new version of QQ has changed the storage directory from /sdcard/tencent/ to/SD card/Android/data/com. Tencent. MobileQQ/Tencent/,just to adapt to the new storage mechanism of Android.

summary

In addition to the above, Android 11 has many very meaningful updates, such as stronger privacy protection, improved notification system, etc., so I won’t list them here. Generally speaking, Android 11 is a version that has undergone major reforms from the inside out. It has solved many historical problems of Android. Let’s look forward to it together.

　　

　　Cctv news(News Network): From July 3 to 8, the Supreme Leader of president was invited to pay a state visit to Russia and Germany and went to Hamburg to attend the 12th summit of G20 leaders, which achieved fruitful results.

　　Chairman Supreme Leader’s visit is a great power diplomatic trip under the current complicated international situation. The trip to Russia has raised the strategic cooperation and pragmatic cooperation between China and Russia to a new height. Visit Germany to promote the new development of Sino-German relations and China-EU relations. Attend the G-20 Summit in Hamburg, and start a new momentum of global economic governance. This visit has released a clear signal that China will deepen its partnership and adhere to multilateralism, and has condensed a strong consensus on safeguarding common security and seeking common development.

　　First, consolidate and deepen China-Russia comprehensive strategic partnership of cooperation

　　Sino-Russian relations are in the best period in history, and the visit of the Supreme Leader has injected new impetus into the development of Sino-Russian relations.

　　The communication between the Chinese and Russian heads of state has deepened. The Chairman of the Supreme Leader held several talks with President Putin and met with Prime Minister Medvedev. The two heads of state conducted in-depth communication on deepening bilateral relations, promoting cooperation in various fields and major international hotspot issues, reached a series of important consensuses, and made new strategic guidance for the comprehensive strategic cooperative partnership between the two countries.

　　The foundation of mutual trust between China and Russia is more solid. The two sides agreed to continue to regard bilateral relations as a diplomatic priority and increase mutual support on issues involving each other’s core interests. The two heads of state signed the Sino-Russian Joint Statement on Further Deepening the Comprehensive Strategic Cooperative Partnership, approved the new four-year implementation outline of the Sino-Russian Good-Neighborly Treaty of Friendship and Cooperation, and made a comprehensive plan for the development of Sino-Russian relations. The Chairman of the Supreme Leader met with friendly people of the two countries and representatives of the media and business circles. He hoped that people from all walks of life would persist in promoting cultural exchanges and pragmatic cooperation between China and Russia and consolidate the social and public opinion foundation of bilateral relations.

　　The interests of China and Russia are more closely integrated. China and Russia will continue to solidly promote the "Belt and Road" construction to connect with the Eurasian Economic Union, deepen pragmatic cooperation in various fields, and promote the implementation of major projects. Relevant departments and enterprises of the two countries signed a large number of agreements on key areas of cooperation.

　　Sino-Russian international cooperation is more synchronized. The two sides will continue to cooperate closely and effectively in international and regional affairs. The two heads of state issued a joint statement on the current world situation and major international issues, highlighting the role of the two countries as stabilizers in international changes. The foreign ministries of the two sides also issued a joint statement expressing their common position on the current situation on the Korean Peninsula.

　　Second, expand and enhance all-round strategic cooperation between China and Germany

　　Planned the way forward for Sino-German relations. Chairman of the Supreme Leader, President Steinmeier and Chancellor Merkel made planning guidelines on deepening China-Germany all-round strategic partnership under the new situation. The Chairman of the Supreme Leader proposed that the two sides should adhere to the road of open, innovative and win-win cooperation, which was positively responded by Germany.

　　Enriched the strategic connotation of Sino-German cooperation. The two sides should carry out docking around "Made in China 2025" and "Industry 4.0" in Germany, and strengthen pragmatic cooperation under the framework of "Belt and Road". The two sides signed a number of cooperation agreements and made new progress in cooperation in the fields of aerospace, high-tech, intelligent manufacturing, etc. China and Germany agreed to strengthen coordination and cooperation at the level of China and Europe and on multilateral occasions to inject more stable and positive factors into the world.

　　It has tightened the spiritual bond between the Chinese and German people. Chairman and his wife Peng Liyuan, the Supreme Leader, attended the opening ceremony of the Giant Panda Pavilion in Berlin Zoo with Chancellor Merkel and watched the Sino-German youth football friendly match together. The two sides agreed to strengthen exchanges in the fields of culture and education and introduce more convenience measures to support personnel exchanges and tourism cooperation between the two sides.

　　It has enhanced the development momentum of China-EU relations. China and Germany jointly support the acceleration of the China-EU Comprehensive Agreement on Investment negotiations, which has a driving effect on deepening the overall cooperation between China and Europe. The Chairman of the Supreme Leader stressed that China and Europe should actively build four partnerships: peace, growth, reform and civilization. All walks of life in Europe believe that the Chairman of the Supreme Leader visited Europe three times in half a year, which injected lasting impetus into China-EU relations.

　　Third, maintain and promote the momentum of G20 cooperation.

　　The G20 is the main forum for international economic cooperation. The Chairman of the Supreme Leader, together with all the participants, promoted the Hamburg Summit to make positive progress on the basis of the Hangzhou Summit.

　　Adhere to openness and tolerance and guide the development direction of the world economy. The Chairman of the Supreme Leader pointed out that the G20 should adhere to the road of open development, mutual benefit and win-win, and support the multilateral trading system. We should handle the contradictions between fairness and efficiency, capital and labor, technology and employment in line with the concept of inclusive growth. The Chairman of the Supreme Leader called for more attention and investment in Africa’s development to achieve inclusive and coordinated development.

　　Advocate comprehensive policies and improve the support of global economic growth. The Chairman of the Supreme Leader pointed out that to strengthen cooperation in the fields of digital economy and new industrial revolution, we should attach great importance to and support the implementation of the 2030 agenda for sustainable development, and continue to strengthen macro-policy coordination, reform international financial institutions, and improve international financial supervision. A series of initiatives put forward by the Chairman of the Supreme Leader have opened up a broader space for global economic growth.

　　Carry forward the spirit of partnership and safeguard the unity and cooperation of all member States. The Chairman of the Supreme Leader emphasized the importance of upholding the spirit of partnership, promoted the summit to build consensus and form synergy, and maintained the confidence of the international community in the cooperation of the G-20.

　　Promote international cooperation and show China’s mind of helping the world. During the meeting, the Chairman of the Supreme Leader stood at the height of building a community of human destiny, participated in various discussions and vigorously promoted international cooperation. The Chairman of the Supreme Leader emphasized that the concept of "One Belt, One Road" is consistent with the direction of promoting the spirit of partnership of the G-20 and building an open world economy, and jointly contributes to the development of the world economy.

　　The communiqué issued after the conclusion of the Hamburg Summit continued to implement the consensus of the Hangzhou Summit and sent a positive signal on strengthening international economic cooperation and global economic governance.

　　During the meeting, the Chairman of the Supreme Leader presided over an informal meeting of BRICS leaders. All parties agreed to strengthen policy communication and coordination, steadily promote cooperation in various fields, and jointly promote the success of the Xiamen meeting.

　　The Chairman of the Supreme Leader met with US President Trump as scheduled. The two sides agreed to adhere to the general direction of Sino-US cooperation, deepen mutually beneficial cooperation, and properly control differences and sensitive issues. The two heads of state also exchanged in-depth views on major hot issues such as the nuclear issue on the Korean Peninsula and confirmed the general direction of solving this issue through peaceful means.

　　The Chairman of the Supreme Leader held his first meeting with South Korean President Moon Jae in, and the two sides agreed to work hard to improve China-ROK relations and maintain regional peace and stability. The Chairman of the Supreme Leader stressed that the two countries should sum up the experience and lessons since the establishment of diplomatic relations 25 years ago, and Do not forget your initiative mind should respect each other. The ROK should attach importance to and properly solve China’s legitimate concerns. The Chairman of the Supreme Leader held a meeting with Japanese Prime Minister Shinzo Abe, stressing that China-Japan relations should be promoted in the right direction, and Japan should show its willingness to improve bilateral relations more in its policies and actions.

　　The Chairman of the Supreme Leader also met with the leaders of France, Britain, Singapore and other countries respectively, and reached new important consensus with all parties on consolidating mutual trust and deepening cooperation.

　　CCTV News:Yesterday (7th), the design concept of China’s first domestic aircraft carrier, Shandong Ship Emblem, and the world launch ceremony of related cultural and creative products were held in the Military Museum, from which China’s military cultural and creative efforts took off.

　　The composition of the emblem of Shandong Ship adopts the angle of 45-degree breaking the waves of the aircraft carrier, showing the momentum of Shandong Ship as the first domestic aircraft carrier in China. The August 1st military emblem and the rudder representing navigation are placed at the top, representing the sacred mission and status of the People’s Liberation Army. Compared with the heavy ship emblem, the ship logo shows the mental outlook of the officers and men on board — — The bottom anchor is combined with the aircraft carrier’s sliding deck to hold up the eagle’s wings and show the unique spirit of the aircraft carrier. The design team skillfully combines the traditional elements of China with the naval culture of China.

　　Aren, Designer of Shandong Ship Emblem:We used the peony flower, which is a provincial flower in Shandong, and also used the branches and leaves of peony flower to set off, which made the whole ship emblem more decorative with Chinese flavor and elements of China. We used a lot of design styles that fit the context of the present era to design it.

　　The exhibition also showed the audience related cultural and creative products such as Shandong ship emblem souvenirs, ship hats and assembled models. The large-volume Shandong ship model exhibited this time attracted many viewers to stop and watch. The Shandong ship hat is even more eye-catching, and it tends to be younger and more daily in terms of hat shape and fabric. It attracts audiences of all ages through novel design and feels the patriotic feelings and positive energy brought by aircraft carrier culture.