Too much ________ to X-rays can cause skin burns, cancer or other damage to the body.

试卷相关题目

• 1Craig assured his boss that he would ________ all his energies in doing this new job.

  A.call forth

  B.call at

  C.call on

  D.call off

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• 2Please do not be ________ by his bad manners since he is merely trying to attract attention.

  A.disregarded

  B.distorted

  C.irritated

  D.intervened

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• 3Scientists generally agree that the Earth’s climate will warm up over the next 50 to 100 years ________ it has warmed in the 20,000 years since the Ice Age.

  A.as long as

  B.as much as

  C.as soon as

  D.as well as

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• 4It isn’t cold enough for there ________ a frost tonight, so I can leave Jim’s car out quite safely.

  A.would be

  B.being

  C.was

  D.to be

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• 5No bread eaten by man is so sweet as ________ earned by his own labour.

  A.one

  B.that

  C.such

  D.what

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• 6When confronted with such questions, my mind goes ________, and I can hardly remember my own date of birth.

  A.dim

  B.blank

  C.faint

  D.vain

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• 7It is well known that knowledge is that ________ condition for expansion of mind.

  A.incompatible

  B.incredible

  C.indefinite

  D.indispensable

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• 8More than two hundred years ago the United States ________ from the British Empire and become an independent country.

  A.got off

  B.pulled down

  C.broke away

  D.dropped off

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• 9Care should be taken to decrease the length of time that one is ________ loud continuous noise.

  A.subjected to

  B.filled with

  C.associated with

  D.attached to

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• 10Some of the most important concepts in physics ________ their success to these mathematical systems.

  A.oblige

  B.owe

  C.contribute

  D.attribute

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