洋地黄中毒常见的心律失常有（）
A.室速
B.房颤
C.房性期前收缩
D.窦性停搏
E.室性期前收缩
参考答案：B, C, E
A high-level language is an artificial language with which we can write various (66)
A. files B. instructions C. text D. papers
候车室服务员下班前应做哪些工作？
