]属于心律失常中冲动传导异常的是()
A.窦性心动过速
B.期前收缩
C.逸搏心律
D.房室传导阻滞
E.心房颤动
参考答案:D
()科目编码必须按财政部的统一编码方案进行编制。
A.明细
B.朱级
C.一级
D.二级
_____the temperature falling so rapidly, we couldn't go on with the experiment. [ ]
A. With
B. As
C. For
D. Since