题目内容
肺动脉高压时,肺动脉瓣M型曲线特征是( )
2021-10-14
A.ct波变大,开放曲线呈M形
B.a波变小或消失,开放曲线呈W或V 波形
C.E峰A峰呈城垛样波形
D.cd段见粗震颤,开放曲线呈M波形
E.c点上移
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