Yesterday Li Ming went to the village_________ his family lived ten years ago.

A. when             B. which             D. where             D. that

谐振过电压包括( )。

A．传递过电压；

B．电磁式电压互感器饱和过电压；

C．发电机同步或异步自励磁过电压；

D．甩负荷过电压。