【判断题】中性点经消弧线圈接地的系统普遍都采用全补偿方式,因为此时接地故障电流最小
【判断题】中性点经消弧线圈接地的系统普遍都采用全补偿方式,因为此时接地故障电流最小。
【简答题】A.Video and online . B.Hazards of a high-tech society. C.Relationships on campus. D.Internet addiction.
【判断题】点焊时,焊接电流切断后就不能再对焊件施加压力。( )
【单选题】Where does the conversation take place?
A.
In the student recreation center.
B.
In the campus dining hall.
C.
In the university bookstore.