the police will need to keep a (wary) eye on this area of town.

试卷相关题目

• 1rumors began to (circulate) about his financial problems.

  A.send

  B.spread

  C.hear

  D.confirm

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• 2the proposal was (endorsed) the majority of members.

  A.rejected

  B.submitted

  C.considered

  D.approved

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• 3many experts remain (skeptical) about his claims.

  A.doubtful

  B.untouched

  C.certain

  D.silent

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• 4the tower remains (intact) ever after two hundred years.

  A.unknown

  B.unusual

  C.undamaged

  D.unstable

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• 5they didn’t seem to appreciate the (magnitude) of the problem.

  A.existence

  B.importance

  C.cause

  D.situation

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• 6mit researchers carry out the study to illustrate an ancient chinese proverb.

  A.right

  B.wrong

  C.not mentioned

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• 7silk’s strength comes from its weak hydrogen bonds working together.

  A.right

  B.wrong

  C.not mentioned

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• 8biologist and engineer are interested in understanding natural silks because they are very light and brittle.

  A.right

  B.wrong

  C.not mentioned

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• 9if the hydrogen bonds break due to external forces, they break fast.

  A.right

  B.wrong

  C.not mentioned

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• 10the mit team had tried different materials before they studied natural silk in their research.

  A.right

  B.wrong

  C.not mentioned

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