题目内容

三相交流操作隔离开关的合闸接触器线圈与合闸接触器动合触点串联起合闸自保持作用。

A. 对
B. 错

查看答案

搜索结果不匹配？点我反馈

更多问题

1. The newcomer always kept____in class

A silently
B. silent

2. He looked______yesterday.

A, tired
B, tiredly

This flower smells______.

A, sweet
B sweetly

The investor grew_______within a short time.

A, richly
B, rich