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Historical science and technology knowledge contest
1. How many solar terms are there in the China lunar calendar? (24) 2. The title of the violin concerto "butterfly lovers" borrowed from an ancient folklore in China? (Liang Zhu) 3. How is sound produced? (Vibration of air) 4. The main causes of seawater tides are: (Moon gravity) 5. According to the law of China, how many citizens under one year old are called minors? (18) 6. Are penguins endemic to Antarctica or the Arctic? (Antarctic) 7. When did Hong Kong return to the embrace of the motherland? (1997 July 1) 8. There are four oceans on the earth. What ocean is located in the northernmost part of the earth? (Arctic Ocean) 9. Who was the national hero who banned opium in Humen during Daoguang period of Qing Dynasty? (Lin Zexu) 10. What kind of plants are you talking about? Can you give it another name? (Lotus Lotus Lotus Lotus Lotus Lotus Lotus) 1 1. Who is the hero of the story of "joining the army instead of the father" in the history of China? (Mulan) 12. Who is the leader known as "the chief architect of China's reform and opening up"? (Deng Xiaoping) 13. What are the "five elements" in ancient China culture? (Jin Mu fire, water and soil) 14. Which star is closest to the earth? (Sun) 15, "Spring silkworms must spin silk even when they die", and silkworms can spin silk to make cocoons. What leaves does she eat? (Mulberry) 16, Dragon Boat Festival, eating zongzi to commemorate which patriotic poet in ancient China? (Qu Yuan) 17. What is the high-tech "two bombs and one satellite" that we often talk about? (atomic bomb, hydrogen bomb, artificial earth satellite) 18. What is the process of green plants absorbing solar energy to make oxygen? (photosynthesis) 19. In China, which day has the shortest day? (winter solstice) 20. Are frogs reptiles? (No, it's an amphibian) 2 1. What is the "brain" of a computer? (Central Processing Unit) 22. What are some black and white straight lines that we often see on commodity packaging? (Bar code) 23. What animal is sitting in the well in the fable "Looking at the sky from the well"? (Frog) 24. When eating western food, which hand should hold the knife and which hand hold the fork? (knife in right hand, fork in left hand) 25. The earth keeps spinning. What is its direction of rotation? (from west to east) 26. What are the three climatic zones that the earth is usually divided into? What climatic zones are most of Tangshan in? (tropical, temperate, frigid zone) (north temperate zone) 27. In China myths and legends, who led people to successfully control floods in ancient times? (Dayu) 28. What four things does Four Treasures of the Study mean? (pen, ink, paper and inkstone) 29. What is the first surname among hundreds of surnames? (Zhao) Thirty. Who invented papermaking in four great inventions of ancient china? (Cai Lun) 3 1. What is China's classical literature Four Great Classical Novels? A Dream of Red Mansions, Journey to the West, Water Margin and Romance of the Three Kingdoms. What is the name of the defendant's opponent in court? (plaintiff) 33. How do you say goodbye in English? (goodbye; Bye bye; See you later. There are seven continents and four oceans in the world. What is the name of the largest continent and ocean? (Asia Pacific) 35. Is it generally the good guy or the bad guy who paints a white face among opera characters? (bad guy) 36. The largest island in China is: (Taiwan Province Island) 37. What are the two kinds of track and field competitions? (track and field) 38. Can the electric fan cool down? (Cannot) 39. In ancient China, there was a saying of "Chyi Chin's calligraphy and painting". What does Qin mean? What does chess mean? (Guzheng Weiqi) 40. What is the symbol of the second industrial technology revolution? (microelectronics) 4 1. How many bones does the human body have? (206 yuan) 42. The golden section contains rich aesthetic value, strict proportionality, artistry and harmony. Do you know its proportion? (0.618) 43. What does UFO mean? (UFO) 44. What is the zhongyue among the five mountains? (Songshan) 45. Which lake is the largest inland saltwater lake in China? (Qinghai Lake) 46. What was the name of the first scientific research station established by China in Antarctica? Great Wall Station) 47. What gas accounts for the largest proportion in the atmosphere near the ground? (nitrogen, about 78%) 48. How long does it take for the earth to rotate once? Who is the scientist who invented the telephone? (Bell) 50. What is the hardest substance known in nature? (diamond (diamond)) 5 1. What is renewable and clean conventional energy? (water energy) What is the name of a technology called length unit that has been talked about by people in recent years? (nanotechnology)

Our armored forces are also called tank soldiers, right? A, right

Tanks were fully developed in World War II, marking the beginning of a new era of mechanized warfare. second time

1August 937 13, China air force's first action against Japanese air strikes was _ _. First, the Sino-Japanese War in Songhu

The official name of West Point Military Academy is _ _. A. united states army military academy

1on March 5, 954, the leading body of the Central People's Liberation Army Railway Corps was established, with _ _ as the first commander. C. Wang Zhen

The first president of China People's Liberation Army Military Academy was _ _. I. Liu Bocheng

1950 In August, the Chinese People's Liberation Army Naval Speedboat School was established in _ _, responsible for training torpedo boat students. Qingdao

_ _ _ _ _, an expert in space technology in China, is the overall designer of the first geostationary orbit test communication satellite in China. B. Sun Jiadong

1959, the first domestic helicopter made its first flight, 1963 was finalized. This plane is made in imitation of the Soviet Mi -4 helicopter. Straight -5 type

The Soviet-Japanese War was a battle between the Soviet Union and fascist Japan from August 9 to September 2, 1945, which played an important role in defeating the Japanese Kwantung Army and ending the war quickly. 2. Right

Fighter (fighter) is called fighter at home and fighter abroad. 2. Right

Zhao Shizhen was a firearms developer in China in Qing Dynasty. He was the first person to systematically study and spread foreign advanced firearms. 1, wrong

Qinshan Nuclear Power Station is located in Haiyan County, China Province. C. Zhejiang

Who's famous saying is "Worry about the world first, and enjoy the world later"? A. Fan Zhongyan

1997, the world's longest submarine optical cable communication line was put into use. The total length of the line is 28,000 kilometers, starting from _ _. London, England

Copernicus was an astronomer. Poland