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

试卷相关题目

• 1________ efforts are needed in order to finish important but unpleasant tasks.

  A.Perpetual

  B.Persistent

  C.Consecutive

  D.Condensed

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• 2Any salesperson who sells more than the weekly ________ will receive a bonus.

  A.portion

  B.quota

  C.ratio

  D.allocation

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• 3They couldn’t see a ________ of hope that they would be saved by a passing ship.

  A.slice

  B.span

  C.gleam

  D.grain

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• 4The microscope and telescope, with their capacity to enlarge, isolate and probe, demonstrate how details can be ________ and separated from the whole.

  A.magnified

  B.radiated

  C.prolonged

  D.extended

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• 5This is a long ________—roughly 13 miles down a beautiful valley to the little church below.

  A.terrain

  B.tumble

  C.descent

  D.degeneration

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• 6It 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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• 7Many 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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• 8He could not ________ ignorance as his excuse; he should have known what was happening in his department.

  A.plead

  B.resort

  C.petition

  D.reproach

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• 9Nothing Helen says is ever ________. She always thinks carefully before she speaks.

  A.simultaneous

  B.spontaneous

  C.rigorous

  D.homogenous

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• 10Medical 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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