资本公积是由企业形成的利润转化而来的。()
参考答案：错
— Could you tell me ?
— Certainly. In half an hour. [ ]
A. when will the train to Chengdu leave
B. when would the train to Chengdu leave
C. when the train to Chengdu leaves
D. when the train to Chengdu left
A．副线圈中电压表的读数为55V
B．副线圈中输出交流电的周期为0.01s
C．原线圈中电流表的读数为0.5A
D．原线圈中的输入功率为110W
W