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【单选题】
刀开关安装时,刀开关在合闸状态下手柄应该向上,不能倒装或平装,这是因为( )
A.
防止绝缘壳体过热
B.
防止触刀松动落下时误合闸
C.
防止绝缘壳体短路
D.
防止触刀松动落下时误断闸
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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