D. they are skillful in different ways.
42. Which 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 Vincis bird-like flying machines.
43. What 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 airplane.
44. Which 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.
45. What does the writer want to tell in the passage?
A. Some animals possess unique skills.
B. Many inventions get ideas from nature.
C. People should protect nature.
D. Bionics is far from perfect.
参考答案:41-45 BADDB
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