妊娠20周后胎儿在宫内死亡（） ["流产","早期流产","晚期流产","早产","死胎"]
治疗血枯瘀阻带下过少的首选方是（） ["人参养荣汤","左归丸","桃红四物汤","十全大补汤","小营煎加丹参、桃仁、牛膝"]
检查远曲小管功能的方法有（）。 ["尿β2C","尿糖","尿NAG","禁饮尿渗量","尿钠"]
颅内最常见的血管畸形是（） ["动脉瘤","动静脉畸形","海绵状血管瘤","毛细血管扩张症","静脉畸形"]
慢性胰腺炎USG表现中，哪项错误（） ["胰腺弥漫性增大","胰腺外形不规则","内部回声不规则增粗、增强","主胰管扩张>3mm","常伴发假性胰腺囊肿"]
简述局麻药中毒的临床表现及防治原则。
