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【多选题】
主令控制器手柄置于“0”位时,线路的工作情况是
A.
零电压继电器线圈通电并自锁
B.
电磁抱闸松开
C.
电动机直接起动
D.
线路为电动机起动做好准备
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】After the birth of my second child，I got a job at a restaurant.Having worked with an experienced 16for a few days，I was 17to wait tables on my own.All went 18that first week.When Saturday night came，I...
A.
repeated
B.
discovered
C.
corrected
D.
described