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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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When ______ comes to research into heart disease and its effects on the body, we do not have adequate substitutes for the use of animals.

A．it

B．this

C．that

D．which

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相关试题

I believe that the 21st century is one ______ China will become one of the most powerful economic countries.

A．which

B．that

C．when

D．where

题型：未知
难度：未知

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–The new museum of art is an unusual ______.
--But it is designed by a very young architect.

A．position

B．category

C．construction

D．contribution

题型：未知
难度：未知

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It’s natural that a man can hardly ______ a smile when he hears some good news.

A．hold up

B．hold back

C．hold off

D．hold on

题型：未知
难度：未知

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We Chinese eat with chopsticks ______ most westerners eat with knives and forks.

A．for

B．as

C．while

D．when

题型：未知
难度：未知

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–Is that hotel big enough? We have at least 200 guests.
--Sure. That’s a hotel which can ______ 300 people.

A．contain

B．include

C．accommodate

D．offer

题型：未知
难度：未知

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