题目内容
阵发性室上性心动过速的心电图诊断,下列哪项不恰当
2021-11-29
A.心室率150~250次/分
B.节律一般规则,但亦可有不规则
C.可见到逆行P波
D.QRS波群形态可不正常
E.起始及终止突然
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