Itisprettywellunderstoodcontro

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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

It is pretty well understood ________ controls the flow of carbon dioxide in and out the atmosphere today.

A．that

B．when

C．what

D．how

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相关试题

_______ to wait a long time at the dentist’s, Mike decided to take along a magazine to read.

A．Expected

B．Not expected

C．Expecting

D．Not expecting

题型：未知
难度：未知

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—We need someone to design the new art museum for us.
—_______ the young fellow have a try?

A．Shall

B．May

C．Will

D．Must

题型：未知
难度：未知

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Sorry, these two tables are already ______. You may book the one over there.

A．preserved

B．deserved

C．observed

D．reserved

题型：未知
难度：未知

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—You see, I’m poor in physics and you are not good at chemistry, and……
— That’s _______ we should help each other.
A. when B where C. how D. what

题型：未知
难度：未知

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You'd better change another book, because ______ page of the book is torn, and ______ cover looks very old.

A．

a; the

B．

the; a

C．

the; the

D．

a; a

题型：未知
难度：未知

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