铸造全冠试戴时,固位差的原因,不正确的是()。 ["未完全就位","
龈距短","聚合度大","代型上的间隙剂过厚","石膏代型磨损"]
急性脊髓炎常见的并发症是() ["肺部感染","泌尿道感染","褥疮","关节挛缩","抑郁症"]
下列哪项不是全身麻醉期间出现低血压的常见原因() ["麻醉过深","应激反应","失血过多","迷走反射","过敏反应"]
脊髓前动脉的供血区包括() ["前柱、侧柱","中央灰质","侧索和皮质脊髓束","前索","后索"]
简要病史:男性,34岁,突发左侧胸痛伴呼吸困难5h。
简要病史:女性,61岁,持续性上腹痛3天,加重伴恶心、呕吐4h。既往有慢性胆囊炎、胆石症病史。