“零、地分开”应理解为()和()始终分开。
A、零线；中性线N
B、零线；保护线PE
C、中性线N；保护线PE
D、中性线N；相线
参考答案：C
武装押运设置押运警戒哨位的原则是什么？
The deck control valve to be（）after being repaired.
A.moved and fitting again
B.removed and refitted
C.reproduced and put on again
D.return and attached again
