What does the writer want to tell in the passage、

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• 1Which of the following is true about the research carried out by the US Army、

  A.It has changed our life.

  B.It has cost a large sum of money.

  C.It has improved the abilities of tanks.

  D.It has not succeeded yet.

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• 2What happened after the Wright brothers' success、

  A.People carried out a systematic study on pigeons.

  B.People could fly their airplane for fun.

  C.People kept their airplane at a French gallery.

  D.People studied more animals and plants to develop the airplan

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• 3Which of the following can be found in the archive gallery、

  A.First practical airplanes built in the late 19th century.

  B.History books.

  C.The Wright brothers' sculpture.

  D.Leonardo da Vinci's bird-like flying machines.

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• 4"Cats", "monkeys" and 'giraffes" mentioned in paragraph 1 are examples to illustrate

  A.they are highly-evolved species as humans.

  B.animals have skills that humans do not possess.

  C.humans can learn animals' skills.

  D.they are skillful in different ways.

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• 5which of the following is NOT true、

  A.softito is a type of extremely spicy food

  B.Many people think Puerto Rican food is spicy

  C.Puerto Rican cuisine uses a lot of chili peppers

  D.Aij caballero is a type of chile pepper

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