鼓膜穿孔平坦型听力曲线，气骨导差达到40dB，应考虑是A．听骨链中断B．听骨链固定C．耳硬化症D．听神经瘤E．化脓性中耳炎

作者: rantiku 人气: - 评论: 0

问题鼓膜穿孔平坦型听力曲线，气骨导差达到40dB，应考虑是

选项 A．听骨链中断 B．听骨链固定 C．耳硬化症 D．听神经瘤 E．化脓性中耳炎

答案 A

解析

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