Don't expect too much of them.They are s

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问题选择题

Don't expect too much of them.They are suffering from a _________ of money themselves. [ ]

A. possibility

B. poverty

C. similarity

D. property

答案

答案：B

选择题

There used _____ many old houses in the past.[ ]

A. to have

B. to be

C. having

D. being

单项选择题

如上下级断路器间连接导体阻抗小，上下级断路器出线端处预期短路电流数值判别很小，则可将上级断路器选为带短延时脱扣器，整定上级断路器短延时动作电流为下级断路器动作电流值的（）。

A.1.1～1.15倍

B.1.2～1.25倍

C.1.25～1.35倍

D.1.1～1.35倍