短路电流中的基频周期分量与转子励磁绕组和转子阻尼绕组中的非周期分量相对应。
参考答案：对
用括号中所给词的适当形式填空。
1. We forgot _____ (tell) him the news, so he didn't know at all.
2. We hope _____ (see) you soon.
3. Put _____ (they) on the sandwich ，please.
4. I think I'm_____ (outgoing) than Sam .
5.The students enjoy _____ (have) birthday parties .
贵州织金洞中最为罕见的是( )。
A．卷曲石
B．象鼻山
C．调山赶石
D．月奶石
