肝硬变时引起门脉高压症的机制是（） ["假小叶压迫肝内血管","肝内血管扭曲、减少","肝动脉和门静脉异常吻合","肝静脉和门静脉异常吻合","部分肝动脉闭塞"]
肝硬变的死亡原因有（） ["肝性脑病","上消化道大出血","合并肝癌","继发感染","腹水"]
门脉高压症的临床表现有（） ["A.脾大","B.肝大","C.胃肠淤血","D.腹水","E.侧支循环形成"]
主要经血传染的病毒性肝炎有（） ["甲型","乙型","丙型","丁型","戊型"]
常规的下肢假肢使用训练不包括（） ["穿脱训练","起坐和站立训练","摔倒训练","平衡训练","步行训练"]
语言沟通的优缺点有哪些？
