电气设备爬电距离与电器的额定绝缘电压或工作电压、污染等级和(_爱下问搜题

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问题单项选择题

电气设备爬电距离与电器的额定绝缘电压或工作电压、污染等级和( )有关。

A．爬比距离

B．对地距离

C．电气间隙

D．绝缘材料

答案

参考答案：D

完形填空

I like movies best. Last week, I 36 a movie called I, Robot . It tells us a story about the future with robots. It is the year of 2035 and people can see robots everywhere. Robots can help people do a lot of things, like looking 37 the old people or babies, washing, cooking, cleaning or taking dogs for a walk. Robot does everything people ask them to do 38 . But a policeman 39 Spooner doesn’t like robots. Because he doesn’t think that people can live well 40 robots.

单项选择题

一般情况下，个人医疗贷款的期限最短为（）年，最长可达（）年。

A．半；3

B．1；3

C．2；4

D．3；5