二尖瓣关闭不全杂音的传导方向是A．向胸骨上窝传导B．向背部传导C．向左腋下传导D．向胸骨下传导E．向颈部传导

作者: rantiku 人气: - 评论: 0

问题二尖瓣关闭不全杂音的传导方向是

选项 A．向胸骨上窝传导 B．向背部传导 C．向左腋下传导 D．向胸骨下传导 E．向颈部传导

答案 C

解析

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