不是开瓣音特征的是A．心尖内侧较易听到B．出现于S2后约0．07sC．声音呈拍击样D．音调低持续时间较长E．响亮、清脆

作者: rantiku 人气: - 评论: 0

问题不是开瓣音特征的是

选项 A．心尖内侧较易听到 B．出现于S2后约0．07s C．声音呈拍击样 D．音调低持续时间较长 E．响亮、清脆

答案 D

解析

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