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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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挑错有奖

In communication, a smile is usually________ strong sign of a friendly and ________ open attitude.

A．the; /

B．a; an

C．a; /

D．the; an

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Edward, you play so well. But I_____________you played the piano.

A．didn’t know

B．hadn’t known

C．don’t know

D．haven’t known

题型：未知
难度：未知

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— Kingston was late for class this morning again.
— You know, _________.

A．all good things come to an end

B．a leopard(豹)cannot change its spots

C．never judge a person by the clothes he wears

D．a work ill done must be twice done

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You didn’t take his advice. ________ his advice, you ________such a stupid mistake.

A．Had you taken; wouldn’t have made

B．If you had taken; would make

C．Were you to take; shouldn’t have made

D．Have you taken; won’t have made

题型：未知
难度：未知

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The radiation amount of a mobile phone for two half-hour periods per day is equal to ________ to an X-ray for ten seconds.

A．expose

B．exposing

C．exposed

D．being exposed

题型：未知
难度：未知

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. ________ he realized it was too late to return home.

A．Not until dark	B．It was until dark
C．It was not until dark that	D．It was dark that

题型：未知
难度：未知

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