胸片上,双肺弥漫粟粒样阴影可见于() ["A.肺转移瘤","B.支气管肺炎","C.结节病","D.矽肺","E.血行播散型肺结核"]
食管的第一狭窄相当于() ["A.第3颈椎下缘","B.第4颈椎下缘","C.第5颈椎下缘","D.第6颈椎下缘","E.第7颈椎下缘"]
下列哪些是肺炎性假瘤的X线特点() ["A.可发生于两肺的任何部位,以肺表浅部位多见","B.形态不一,可呈圆形、椭圆形或类圆形","C.多数直径在2~4cm,少数甚至大于10cm","D.一般为中等密度,大多均匀","E.可在数年之内无明显增大"]
最容易导致周围循环衰竭的是()急性肾衰竭少尿期摄入水分过多可发生() ["A.高渗性脱水","B.低渗性脱水","C.等渗性脱水","D.全身性水肿","E.水中毒"]
位于前纵隔的肿瘤有() ["A.胸腺瘤","B.皮样囊肿","C.畸胎瘤","D.神经纤维瘤","E.支气管囊肿"]
硫胺素缺乏可导致()维生素D缺乏可导致()维生素C缺乏可导致()