除哪项外，下列均为冲动起源异常所致的心律失常（）
A.房室传导阻滞
B.房扑
C.房性早搏
D.室性逸搏
E.阵发性室上性心动过速
参考答案：A
China has got a good _____ for fighting against the flu with its careful and smooth organization. [ ]
A. reputation
B. influence
C. impression
D. knowledge
脚手架的任何部分均不得与模板相联
