目前认为鼻咽癌的发生与________、________、________等有关。
男，60岁，腰痛3周，无明显外伤史，X线片示第三腰椎椎体破环，压缩楔形变，椎间隙正常，最可能的诊断是() ["A．脊椎肿瘤","B．脊椎结核","C．脊椎骨折","D．强直性脊柱炎","E．化脓性脊柱炎"]
股外侧皮神经的分支为() ["A．髂内(腹下)支","B．内侧支","C．后支","D．髋支","E．腹股沟支"]
股骨下端肿瘤生长迅速，局部疼痛进行性加重，有夜间痛，局部温度增高，关节活动受限，X线检查有骨质破坏和骨膜反应，最可能是() ["A．骨瘤","B．软骨瘤","C．骨软骨瘤","D．骨肉瘤","E．骨髓瘤"]
腓神经瘫痪的最大无力表现为() ["A．足跖屈内翻","B．拇趾屈曲","C．膝屈曲","D．足背屈内翻","E．膝伸展"]
甲状腺核素的异常显影为________、________、________。
