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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

______ scientists have learned a lot about the universe, there is much we still don't know.

A．Once

B．Since

C．Though

D．Unless

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相关试题

Mr. Brown is warm-hearted and often does everything that he can to to those in trouble.

A．break out

B．set out

C．reach out

D．pick out

题型：未知
难度：未知

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Why not go to big cities, young man? That’s many young men are.

A．when

B．where

C．why

D．in which

题型：未知
难度：未知

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The big concert, to raise money for the victims of the hurricane in Australia, worked out very well.

A．being meant

B．meaning

C．meant

D．had meant

题型：未知
难度：未知

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—Could you teach me how to download songs from the Internet?
— . It’s easy to learn.

A．No problem

B．Never mind

C．Not at all

D．Don’t mention it

题型：未知
难度：未知

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The policeman looked around and caught a man his hand into the pocket of a passenger.

A．put

B．to be putting

C．to put

D．putting

题型：未知
难度：未知

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