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[单选题]

Metals expand when they are heated and ____ when cooled.

A、indicate

B、eliminate

C、conquer

D、contract

答案
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更多“Metals expand when they are heated and ____ when cooled.”相关的问题

第1题

A robot can be used to expand our frontiers when ______.A.its intelligence and cost are be

A robot can be used to expand our frontiers when ______.

A.its intelligence and cost are beyond question

B.it is able to bear the rough environment

C.it is made as complex as the human brain

D.its architecture is different from that of the present ones

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第2题

When something is important, don't deal with it until it becomes urgent.()
When something is important, don't deal with it until it becomes urgent.()

A.正确

B.错误

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第3题

I can’t agree with______you saiD、

A.when

B.what

C.that

D.whether

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第4题

Don't use more words ____are needed to express an idea.

A.that

B.than

C.when

D.which

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第5题

—Why didn’t you tell him the good news?

A.before

B.until

C.when

D.after

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第6题

I didn’t know __to do with it.A. WhatB. WhichC. WhyD. When

I didn’t know __to do with it.

A. What

B. Which

C. Why

D. When

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第7题

I didn't remember his name_____after I had greeted him.

A.when

B.as

C.until

D.while

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第8题

If I hadn’t stood under the ladder to catch you when you fell, you ___ now.

A.couldn’t have smiled

B.wouldn’t be smiling

C.didn’t smile

D.won’t smile

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第9题

Mary is always _______when she doesn’t get any mail.

A、affected

B、dissed

C、plain

D、disturbed

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第10题

Only when you have a large vocabulary___read fast.

A.you will

B.you can

C.can you

D.can’t you

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