The basic causes are unknown, although certain conditions that may lead to cancer have been ________.

试卷相关题目

• 1All individuals are required to ________ to the laws made by their governments.

  A.obey

  B.conform

  C.concede

  D.observe

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• 2They have always regarded a man of ________ and fairness as a reliable friend.

  A.robustness

  B.temperament

  C.integrity

  D.compactness

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• 3Even when textbooks are ________ through a school system, methods of teaching may vary greatly.

  A.commonplace

  B.standardized

  C.competitive

  D.generalized

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• 4I think that I committed a ________ in asking her because she seemed very ups et by my question.

  A.blunder

  B.revenge

  C.reproach

  D.scandal

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• 5The court considers a financial ________ to be an appropriate way of punishing him.

  A.option

  B.duty

  C.obligation

  D.penalty

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• 6It is very strange but I had an ________ that the plane would crash.

  A.inspiration

  B.intuition

  C.imagination

  D.incentive

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• 7The changing image of the family on television provides ________ into changing attitudes toward the family in society.

  A.insights

  B.presentations

  C.revelations

  D.specifications

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• 8The town planning commission said that their financial outlook for the next year was optimistic. They expect increased tax ________.

  A.efficiency

  B.revenues

  C.privileges

  D.validity

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• 9Bill is an example of a severely disabled person who has become ________ at many survival skills.

  A.proficient

  B.persistent

  C.consistent

  D.sufficient

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• 10The ties that bind us together in common activity are so ________ that they can disappear at any moment.

  A.trivial

  B.fatal

  C.tentative

  D.feeble

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