——Thank you very much for everything. You’ve been so he1pful.

——       . Just let me know if there is anything else I can do for you.

A．With pleasure

B．My pleasure

C．Please don’t say so

D．Never mind

急性心肌梗死病人最需要紧急处理的心律失常是

A．频发房性过早搏动

B．Ⅰ度房室传导阻滞

C．心房颤动

D．多源频发室性期前收缩

E．窦性心动过缓