Historical experience can ____ as a most important source of information.A．serve

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Historical experience can ____ as a most important source of information.

A．serve

B．use

C．regard

D．prove

答案

解析

略

举一反三

This is a story completely_____ by him, so don’t rust him.

A．discovered

B．invented

C．found

D．known

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--How are your business goes wrong?
---But I have done all that is __ by law.

A．required

B．judged

C．requested

D．desired

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. When cutting the cloth for my suit, leave enough at the edges to ____my getting fatter.

A．supply of

B．provide for

C．provide against

D．provide with

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It _____ to the airport.

A．takes forty minute"s drive to get	B．takes forty-minute drive to get
C．is forty-minutes" drive	D．is a forty-minute drive

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I tried hard to get some information about the new technology out of his mouth, but he remained_________．

A．quiet

B．secret

C．silent

D．calm

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