中耳癌最常见的来源是()A．继发于耳廓B．继发于外耳道C．原发于中耳D．鼻咽癌经咽鼓管扩展至中耳E．腮腺癌侵犯巾耳

作者: rantiku 人气: - 评论: 0

问题中耳癌最常见的来源是()

选项 A．继发于耳廓 B．继发于外耳道 C．原发于中耳 D．鼻咽癌经咽鼓管扩展至中耳 E．腮腺癌侵犯巾耳

答案 C

解析

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