不间断电源、装置间连线的线间、线对地绝缘电阻值应大于1MΩ。（）
参考答案：错
— Sorry, I am late. I got stuck in the highway.
— _______. We haven’t started the meeting. Come in and sit down.
A．Don’t be late next time
B．That’s right
C．You are welcome
D．Never mind
找窜施工，若窜通量大于（）则进行封窜工艺。
A、10L/min
B、15L/min
C、20L/min
D、30L/min
