二尖瓣关闭不全房间隔缺损 ["第一心音亢进","第一心音减弱","A↓2亢进","P↓2固定分裂","P↓2逆分裂"]
慢性再生障碍性贫血的临床表现有() ["A．贫血常较出血及感染为重","B．贫血呈慢性过程","C．起病缓慢，病程较长","D．肝、脾及淋巴结常肿大","E．以皮肤粘膜出血为主"]
每天尿蛋白量持续超过多少是蛋白尿() ["A．100mg","B．150mg","C．200mg","D．250mg","E．300mg"]
缺铁性贫血所致外胚叶营养障碍，临床表现有() ["A．毛发干枯脱落","B．皮肤干燥发皱","C．指甲扁平或反甲","D．杵状指","E．吞咽困难"]
肾脏哪一个部位分泌肾素() ["A．肾小球基膜","B．肾髓质","C．肾小管","D．肾小球系膜","E．肾小球旁器"]
主动脉瓣关闭不全扩张型心肌病
