脊髓损伤水平定位在L3平面关键肌为() ["伸膝肌(股四头肌)","长伸趾肌(趾长伸肌)","踝背伸肌(胫骨前肌)","踝跖屈肌(腓肠肌、比目鱼肌)","屈髋肌(髂腰肌)"]
玻璃体液化的开始部位() ["基底部","周边部","中央区","视乳头前","黄斑前"]
下列哪项不是脊麻后并发症() ["腰背痛","空气栓塞","颅内感染","头痛","马尾神经综合征"]
以下所列项目不属白色主病范围者为() ["A.夺气","B.脱血","C.虚证","D.寒证","E.水饮"]
增加底物浓度可解除抑制作用的是() ["激动剂","蛋白变性剂","激活剂","竞争性抑制剂","非竞争性抑制剂"]
温氏法测定红细胞比积,抗凝剂采用(),其组成为()加()