问题
问答题 简答题
直流母线的联络开关合闸后，为什么要停用一组直流绝缘监测装置？
答案
参考答案：
直流绝缘装置无法进行正常工作。接地回路的故障电流将增加。
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直流母线的联络开关合闸后，为什么要停用一组直流绝缘监测装置？
参考答案：
直流绝缘装置无法进行正常工作。接地回路的故障电流将增加。
完形填空 One day Mr and Mr Black went shopping by car. They stopped their car near a 1 .They bought many things from the shop and the things were very 2 .They wanted to put them 3 .But Mr Black can’t 4 the door of the car. “Let’s ask a policeman for 5 .,”said Mrs Black. The policeman was very 6 to help them open the door of the car. At that time a 7 .came up and shouted ,”what are you doing with 8 ?”Mr and Mrs Black looked at the 9 of the car. Then they said 10 to the man.
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