Thisis3Dprinter.Andthisisanart

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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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This is 3-D printer. And this is an artificial (人工的) ear. Can you believe that scientists printed this artificial ear by this 3-D printer?

A．a

B．an

C．the

D．/

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相关试题

Daniel lives _______ his family _______ a flat _______ a quiet street.

A．with; in; at

B．with; on; in

C．in; in; on

D．with; in; on

题型：未知
难度：未知

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We don’t have to go far if we want ______ with our work.

A．to help

B．helps

C．helping

D．help

题型：未知
难度：未知

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You should keep _______ in the reading room.

A．quiet

B．quite

C．quietly

D．quickly

题型：未知
难度：未知

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Don't ______ the window. Listen to me carefully.

A．look out

B．look out of

C．look out at

D．look for

题型：未知
难度：未知

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Now children, turn to Page _____ and look at the _____ picture in Unit 1.

A．Twentieth, one

B．Twenty, one

C．Twentieth, first

D．Twenty, first

题型：未知
难度：未知

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