试题与答案

室上性早搏在心电图上,哪种改变是正确的() A.P波早期出现 B.室性复合波多无改变

题型:单项选择题

题目:

室上性早搏在心电图上,哪种改变是正确的()

A.P波早期出现

B.室性复合波多无改变

C.不完全代偿间歇

D.P波正常,双相或倒置

E.以上全部

答案:

参考答案:E

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