1. Martin Eden is the autobiography of American writer Mark Twain.
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2. French painter Monet belongs to impressionism.
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3. During the Spring and Autumn Period, the Three Kingdoms were Wei, Shu and Wu.
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The earliest university library in the world is the library of Byzantine Imperial Philosophy College.
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The map and the star map are in the same direction.
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6. Diary of a Madman is Lu Xun's first novel.
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7. The Organization of Petroleum Exporting Countries is composed of Asian oil-producing countries.
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8. "Khufu riding and shooting" was a reform measure promoted by Qin Shihuang.
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9. Plum blossoms bloom in spring.
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10. All citizens have the obligation to perform military service.
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Bacteria are the most widely distributed organisms on the earth.
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12. abacus is most suitable for addition and subtraction.
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13. crested ibis is a national first-class protected animal.
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14. Stainless steel contains chromium and nickel.
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15. Qi Baishi is the best painter who paints horses in modern China.
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16. The missile was first used in World War II.
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17. The goalposts of football must be white.
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18. Knife and pole festival is a traditional festival of Wa people.
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19. Daqing Oilfield is the first oil base in China.
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20. It should be pure Shi Ying crystal.
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2 1. The longest heroic epic in the world is Makhapbharata in ancient India.
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22. The largest sugarcane production base in China is in the Yangtze River Delta.
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The nutritional value of brown sugar is higher than that of white sugar.
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24. Ethylene is a plant growth hormone.
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25. All pine trees are evergreen all the year round.
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26. Protons can decay into a neutron and a positron.
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27. The corrosion of iron in air is mainly oxygen absorption corrosion.
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28. The genes of wolves and dogs are basically the same.
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29. Neon lamp means helium lamp in English.
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30. The metal with the best conductivity is copper.
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1. The first railway crossing the desert in China is baotou-lanzhou railway.
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2. "Don't you see how the water of the Yellow River flows down from the sky into the ocean and never comes back?" This is a poem by Li Bai.
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Boao Forum for Asia is the first permanent international conference organization in China.
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4. The kitten bear is also called the panda.
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The main component of gas is hydrogen.
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6. White blood cells are white.
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7. The chemical name of glycerol is glycerol.
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The freezing point of seawater is lower than that of pure water.
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The country that produces the most newsprint in the world is the United States.
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10. The biggest tributary of this river is Weihe River.
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1 1. Handshaking can spread AIDS.
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12. The density of yolk is greater than that of protein.
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13. The largest hometown of cranes in China is located in Zhalong, Heilongjiang.
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14. When the temperature drops to 0℃, the water on the ground begins to freeze.
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15. Hydrogen can be used for cooling.
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16. A table tennis match can only play 2 1 ball at most.
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17. Adding hydrated lime to coal can reduce the pollution of sulfur dioxide.
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18. chemical weapons were first used in the second world war.
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19. Oil can be made into soap.
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20. The saxophone is a brass instrument.
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2 1. The earliest autonomous region established in China is Inner Mongolia Autonomous Region.
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22. Tin containers cannot be used in very cold places.
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23. Most mammals see a world of black and white.
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24. The largest cell in the human body is the egg cell.
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25. From the biological point of view, the essence of infectious diseases is parasitism.
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26. The nearest planet to the earth is the moon.
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27. Modern western opera originated in Vienna.
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28. The folk music pipa originated in China.
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29. Insulin is a hormone.
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30. Pipa song "House of Flying Daggers" refers to the story of the Battle of Gaixia.
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