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问题 单项选择题

当混凝土强度评定不符合有关标准要求时，回弹法，钻芯取样法，后装拔出法检测的混凝土强度推定值（）作为结构是否需要处理的依据。

A、可

B、宜

C、不能

答案

参考答案：A

选择题
The thief ran __________ when he saw the policeman.

A. to
B. after
C. down
D. away
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选择题

Some families in the countryside were _____ poor _____ pay for the school. We should try our best to help them.

A．too, couldn’t

B．too, to

C．very, can’t

D．so, couldn’t
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