鼻咽癌侵犯颅底，最常见的途径是() ["A．圆孔","B．卵圆孔","C．破裂孔","D．咽缝","E．翼内肌"]
颈深上淋巴结在头颈肿瘤的诊断和治疗中具有重要的意义，它可以是下面哪一肿瘤转移的第一站() ["A．头皮癌","B．舌癌","C．甲状腺癌","D．声门上型喉癌","E．颈段食管癌"]
肺部慢性炎症的主要病理变化为() ["A．渗出","B．纤维化","C．空洞","D．增殖","E．钙化"]
简述气管闭合性创伤如何修复损伤。
男，78岁，左侧肢体乏力，口齿不清，结合CT检查，最可能的诊断是() ["A．大片状脑梗死","B．脱髓鞘改变","C．多发腔隙性梗死","D．皮层下动脉硬化性脑病","E．脑萎缩"]
颈部开放性神经损伤的原因是()颈部开放性血管损伤多由上面那个因素引起()
