正弦电流通过电容元件时，电流应为（）。
A.jωCUm
B.
C.-jωCUm
D.-
参考答案：B
My parents had ________ me to be aware of the advantage we had been afforded and the responsibility it brought to us.
A．argued
B．shared
C．raised
D．quarreled
阻塞性黄疸的实验室检查，下列哪项异常（）
A.出血时间延长
B.凝血时间延长
C.凝血酶原时间延长
D.血小板聚集试验对高浓度ADP不凝集
E.3P试验阳性
