Spurling试验又称为() ["A．椎间孔挤压试验","B．背伸拇趾试验","C．背伸踝试验","D．扳指试验","E．拇指小指夹纸试验"]
试述137铯中距离治疗机优点。
临床最多见的颈椎病类型是() ["A．混合型","B．脊髓型","C．神经根型","D．椎动脉型","E．交感型"]
除哪项外均为亲骨性肿瘤() ["A．鼻咽癌","B．肺癌","C．乳癌","D．肾癌","E．皮肤癌"]
下列哪种为成骨性肿瘤() ["A．前列腺癌","B．子宫癌","C．肾癌","D．甲状腺癌","E．乳癌"]
60钴远距离治疗机有哪些优缺点?
