He could not ________ ignorance as his excuse; he should have known what was happening in his department.

试卷相关题目

• 1Many manufacturers were accused of concentrating too heavily on cost reduction, often at the ________ of the quality of their products.

  A.expansion

  B.expectation

  C.expense

  D.exposure

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• 2It took a lot of imagination to come up with such a(n) ________ plan.

  A.ingenious

  B.vigorous

  C.inherent

  D.exotic

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• 3Some scientists are dubious of the claim that organisms ________ with age as an inevitable outcome of living.

  A.degrade

  B.default

  C.depress

  D.deteriorate

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• 4________ efforts are needed in order to finish important but unpleasant tasks.

  A.Perpetual

  B.Persistent

  C.Consecutive

  D.Condensed

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• 5Any salesperson who sells more than the weekly ________ will receive a bonus.

  A.portion

  B.quota

  C.ratio

  D.allocation

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• 6Nothing Helen says is ever ________. She always thinks carefully before she speaks.

  A.simultaneous

  B.spontaneous

  C.rigorous

  D.homogenous

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• 7Medical students are advised that the wearing of a white coat ________ the acceptance of a professional code of conduct expected of the medical profession.

  A.simulates

  B.supplements

  C.swears

  D.signifies

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• 8He bought his house on the ________ plan, paying a certain amount of money each month.

  A.premium

  B.installment

  C.division

  D.fluctuation

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• 9She was deeply ________ by the amount of criticism her play received.

  A.frustrated

  B.deported

  C.involved

  D.deprived

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• 10Most mathematicians trust their ________ in solving problems and readily admit they would not be able to function without it.

  A.conception

  B.perception

  C.cognition

  D.intuition

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