搜题请搜索小程序“爱下问搜题”
问题 单项选择题

对绝缘电阻表进行短路试脸的方法正确的是（）。

A.先慢摇、然后E、L短接

B.先摇至转速120r/min左右、然后E、L短接

C.E、L短接，然后瞬时慢摇

D.E、L先短接，由慢至加速120r/min转左右

答案

参考答案：A

问答题 简答题

简述微生物处理废气的基本原理。
查看答案
单项选择题

The process of gaining or losing weight can be explained by comparing your body to your car. Both run (51) fuel, food for your body and gasoline for your car. Both (52) that fuel, first into heat, then energy, some of (53) is used to do work, and some emitted as waste. And (54) your car uses more energy when the engine is racing than when it is idling, (55) does your body use more energy when you are working hard than (56) you are resting.

For the purpose of this comparison, (57) , there is one significant difference between them. Your car cannot store fuel by turning it into (58) else; all gasoline not (59) remains as gasoline. But your body stores (60) energy as fat. When the gas tank is completely empty, the car won’t run; but your body can burn fat to provide more energy.

56().

A.that 

B.since 

C.when 

D.where
查看答案