问题
判断题
检测零序电流分量则可以判断系统是否发生接地故障。
答案
参考答案：对
搜题请搜索小程序“爱下问搜题”
检测零序电流分量则可以判断系统是否发生接地故障。
参考答案：对
选用方框中所给动词的适当形式填空
小题1:Mr Smith asked his children __________at others. It’s rude.小题2:They ___________ up before they find the answers.小题3:This is impossible. You ______________ again.小题4:Some food can ___________ for many days in the fridge.小题5:His house _________ fire last night and everything in it was burnt up. |