个人购买房屋时印花税的缴纳，采用自行购花，自行贴花，自行销花的方法。( )
参考答案：对
_____ by keeping down costs will Power Data hold its advantage over other companies. [ ]
A. Only
B. Just
C. Still
D. Yet
A．副线圈输出交流电的频率为10Hz
B．交流电压表的示数为20V
C．电阻R上消耗的电功率为2kW
D．原线圈中电流的最大值为100A
V