功率表在测量电路的有功功率时,应放在( )处。
A.靠近电源
B.电路中间
C.靠近最大负载元件
D.任意
参考答案:A
31. Hurry up! By the time we get to the church, the marriage service _____.
A.had started
B.will have started
C.has started
D.must have started
电力市场改革的其中一项内容是解除管制,即政府应该将市场完全放开,不做任何管制。