肺动脉瓣关闭不全最常见的病因是(?)A．特发性肺动脉扩张B．继发于肺动脉高压所致肺动脉干的根部扩张C．肺动脉瓣病变如风湿性心脏病D．感染性心内...

作者: rantiku 人气: - 评论: 0

问题肺动脉瓣关闭不全最常见的病因是(?)

选项 A．特发性肺动脉扩张 B．继发于肺动脉高压所致肺动脉干的根部扩张 C．肺动脉瓣病变如风湿性心脏病 D．感染性心内膜炎致肺动脉瓣穿孔 E．马方氏综合征致肺动脉扩张

答案 B

解析

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