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更新 2022-09-03
科目英语
题型单选题
难度中等
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Los Angeles Times reported that researchers may have found a way to _________ human life by changing certain genes, so that humans might expect to live twice as long.

A．extend	B．preserve
C．multiply	D．transform

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It also awards me _____ opportunity to learn American culture at _____ first hand.

A．/; the

B．the; a

C．an; /

D．/; a

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We ________ last night, but we went to the concert instead.

A．must have studied

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D．would study

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．---I’m terribly sorry to have put you through so much trouble.
--- ________. I know you didn’t mean to.

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A study shows that students living in non-smoking dormitories are less likely to ________ the habit of smoking.

A．pick up

B．turn up

C．draw up

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．--- ______，he knows a lot of things.

A．The child as he is

B．Child as he is

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