电力系统中的无功电源有哪几种?
参考答案:
电力系统中的无功电源有:同步发电机、调相机、并联补偿电容器、串联补偿电容器、静止补偿器。
--- So you gave her your phone ?
--- _____ ,she said she’d return it to me when she could afford her own.
A.Not exactly
B.My pleasure
C.No wonder
D.All right
发盘的撤回与撤销的区别在于( )
A.前者发生在发盘生效后,后者发生在发盘生效前B.前者发生在发盘生效前,后者发生在发盘生效后C.两者均发生在发盘生效前D.两者均发生在发盘生效后