题目内容
二度I型房室传导阻滞的心电图特征是
2022-02-17
A.P-R间期进行性延长，伴QRS波脱漏
B.QRS波宽大畸形
C.P-R间期进行性缩短
D.R-R间距进行性延长
E.房室传导比例3:1下传多见
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