下述纵隔肿瘤中，可产生重症肌无力和上腔静脉阻塞症状的是() ["A．淋巴瘤","B．胸内甲状腺肿","C．巨淋巴增生症","D．胸腺肿瘤","E．畸胎瘤"]
婴儿腹泻导致代谢性酸中毒的主要原因是() ["A．饥饿","B．机体酸性代谢产物产生增多","C．排泄酸性代谢产物减少","D．腹泻液中丢失HCO","E．以上都不是"]
主肺动脉窗层面不包括哪一解剖结构() ["A．升主动脉和降主动脉","B．降主动脉，气管","C．上腔静脉","D．奇静脉弓通常也位于此层面","E．头臂静脉"]
人体内嘌呤分解代谢的最终产物是() ["A．尿素","B．胺","C．肌酸","D．β丙氨酸","E．尿酸"]
慢性肾小球肾炎()快速进行性肾小球肾炎() ["A．镜下病变主要为肾小球纤维化，玻璃样变","B．镜下病变主要为新月体，环状体","C．两者均有","D．两者均无"]
良性高血压病()恶性高血压病()
