[名词解释] 龙套

声腔 硬膜外麻醉后并发症包括（） ["A、硬膜外血肿和感染","B、神经合并症","C、尿潴留","D、腰背痛","E、下肢无力"] 唱念做打 臂丛神经阻滞麻醉有三种穿刺法即（） ["A、肌间沟法","B、锁骨上法","C、腋入法","D、肌间韧带法","E、锁骨下法"] 净 龙套