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更新 2022-09-03
科目英语
题型单选题
难度较易
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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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相关试题

With ______ help of his teachers, he made ______ great progress in his study.

A．a; a	B．the; 不填
C．the; the	D．a; 不填

题型：未知
难度：未知

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I _____ in the street when someone _____ me.

A．walk; called	B．walking; calling
C．was walking; called	D．walked; called

题型：未知
难度：未知

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The number of people who _______ invited to the meeting _____ fifty, but a number of them _____ absent for different reasons.

A．were; was, was	B．was; was, were
C．were, was; were	D．were; were, was

题型：未知
难度：未知

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The early pioneers had to _____ many difficulties to settle down on the new land.

A．get along with	B．go after
C．go over	D．go through

题型：未知
难度：未知

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The teacher called Tim’s mother ________ what he had done in the test.

A．because of	B．because
C．since	D．as

题型：未知
难度：未知

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