功率三角形中，功率因数角所对的边是（）。
A、视在功率
B、瞬时功率
C、有功功率
D、无功功率
参考答案：D
在同一个圆内，直径是最长的一条线段。[ ]
He doesn't often agree with me. He thinks different from me.
A．different to
B．different with
C．differently from
D．differently to
