Such a database would be extremely costly to set up.

A．establish

B．destroy

C．update

D．transfer

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参考答案

本题考查动词词组。题干：要建立这么一个数据库，成本极其高昂。划线词组set up的意思是“建立”，和establish同义。destroy“毁灭”， update“更新”，transfer“转移”。根据题意，正确答案为A。

1 Many cities have restricted smoking in public places.

A．allowed

B．stopped

C．kept

D．limited

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2 The document was compiled by the Department of Health.

A．written

B．printed

C．attached

D．sent

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3 There was a profound silence after his remark.

A．short

B．deep

C．proud

D．sudden

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