大脑中动脉深穿支闭塞的最常见表现是() ["四肢瘫痪,双侧面瘫,不能言语,不能进食,只有眼球上下运动","眼球震颤,同侧Homner征,交叉性感觉障碍,同侧小脑性共济失调","对侧偏瘫,无感觉障碍及偏盲,优势侧伴失语","对侧偏瘫,偏身感觉障碍,同向偏盲","对侧偏瘫,深感觉障碍,自发性疼痛"]
可辅助诊断玻璃异物的检查有() ["眼球X线正侧位片","眼B超","电磁铁","眼部CT","眼部MRI"]
患者,男,30岁,3个月前因外伤一前牙脱落,有临时活动义齿修复,现要求固定修复。口腔检查:缺失,间隙可,牙槽嵴无明显吸收,近中切角缺损,叩(一)无松动,牙冠正常,叩(一),X线片,行完美根管治疗,全身状况良好如果选用了双端固定桥,固位力强的方式是() ["A.两侧基牙均为全冠固位体","一侧基牙为全冠,一侧为3/4冠","一侧基牙为全冠,一侧为粘结固位体","一侧基牙为全冠,一侧为开面冠","以上都不是"]
铁质沉着症的典型表现有() ["虹膜呈棕色","玻璃体呈棕黄色","瞳孔散大","晶状体棕黄色混浊","视神经萎缩"]
脑梗死的病因中,最重要的是() ["动脉硬化","高血压","动脉壁炎症","真性红细胞增多症","血高凝状态"]
试述下颌下腺摘除术的主要并发症。