急性心肌梗死最常见的心律失常是
A．心房颤动B．房室传导阻滞C．室性期前收缩D．窦房传导阻滞
参考答案：C
Whenever you are in trouble ,don’t hesitate _____us for help.
A．in asking
B．with asking
C．to ask
D．to asking
SLE最常见的心脏损害为心肌炎
