To prevent flooding in winter the water flowing from the dam is constantly ________ by a computer.

试卷相关题目

• 1By signing the lease we made a ________ to pay a rent of $ 150 a week.

  A.conception

  B.commission

  C.commitment

  D.confinement

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• 2Attempts to persuade her to stay after she felt insulted were ________.

  A.in no way

  B.on the contrary

  C.at a loss

  D.of no avail

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• 3The younger person’s attraction to stereos cannot be explained only ________ familiarity with technology.

  A.in quest of

  B.by means of

  C.in terms of

  D.by virtue of

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• 4We should be able to do the job for you quickly, ________ you give us all the necessary information.

  A.in case

  B.provided that

  C.or else

  D.as if

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• 5The terrorists might have planted a bomb on a plane in Athens, set to ________ when it arrived in New York.

  A.go off

  B.get off

  C.come off

  D.carry off

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• 6Many people think of deserts as ________ regions, but numerous species of plants and animals have adapted to life there.

  A.virgin

  B.barren

  C.void

  D.wretched

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