病毒性心肌炎的临床诊断依据为（）
A.发热
B.心功能不全
C.心脏扩大
D.心电图改变
E.CK-MB升高
参考答案：B, C, D, E
.
The news has spread all over the world___________more than 115 miners have been saved after more than a week underground in Shanxi province.
A．that
B．which
C．whether
D．what
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