职称英语职称英语理工类2008年职称英语等级考试试题理工类C

试卷预览

• 21Long—term memory is more important than short-term memory.

  A.Right

  B.Wrong

  C.Not mentioned

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• 22Generally we remember only a few facts about the past.

  A.Right

  B.Wrong

  C.Not mentioned

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• 23The Hyper-X broke the record because

  A.it was the first air-breathing jet plane．

  B.it flew along the equator．

  C.it traveled at the speed of sound．

  D.it reached a speed of about 5, 000 miles per hour，

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• 24What kind of engine did the Hyper-X use、

  A.jet engine that carries its own oxygen supply．

  B.jet engine that uses no oxygen．

  C.scramjet engine that doesn't carry its own oxygen supply．

  D.rocket engine that carries its own oxygen supply.

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• 25Which of the following is NOT true of the scramjet engine、

  A.It has been used on passenger planes．

  B.The air it breathes does not put out the combustion flames．

  C.It works at speeds greater than five times the speed of sound．

  D.It goes as fast as a rocket．

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• 26What does Werner J．A．Dahm say about the Hyper-X test flight、

  A.It was unsuccessful because it lasted only 11 seconds．

  B.It is a very important event in developing very fast airplanes．

  C.It allows people to fly at an altitude of 100,000 feet．

  D.It can transport cargo quickly and cheaply to outer space．

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• 27What does NASA plan to do、

  A.To build one more Hyper-X aircraft．

  B.To carry out three more Hyper-X experiments．

  C.To make the aircraft fly higher and longer．

  D.To test another hypersonic flight at 10 times the speed of sound．

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• 28Parents in the United States tend to ask their children

  A.to save food for tomorrow．

  B.to wash the dishes．

  C.not to waste food．

  D.not to eat too much．

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• 29Why do American restaurants serve large portions、

  A.Because Americans associate quantity with value．

  B.Because Americans have big bellies．

  C.Because Americans are good eaters．

  D.Because Americans are too weak．

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• 30What happened in the 1970s、

  A.The US government called on its people to reduce their weight．

  B.Health experts persuaded restaurants to serve smaller portions．

  C.The United States produced more grain than needed．

  D.The American waistline started to expand．

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