上颌窦后壁的恶性肿瘤引起张口困难的原因是A．肿瘤侵犯了颞颌关节B．肿瘤侵犯了翼内肌C．肿瘤侵犯了翼外肌D．肿瘤侵犯了咬肌E．肿瘤侵犯了冠突

作者: rantiku 人气: - 评论: 0

问题上颌窦后壁的恶性肿瘤引起张口困难的原因是

选项 A．肿瘤侵犯了颞颌关节 B．肿瘤侵犯了翼内肌 C．肿瘤侵犯了翼外肌 D．肿瘤侵犯了咬肌 E．肿瘤侵犯了冠突

答案 B

解析

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