关于老年人流脑的特点，下列哪项是错误的() ["A．病程长","B．暴发型发病率高，预后差","C．容易出现皮肤瘀点、瘀斑","D．白细胞计数可能不高","E．上呼吸道感染的症状少见"]
关于婴幼儿流脑的特点，哪项是错误的() ["A．临床表现不典型","B．拒食、呕吐、腹泻较成人多","C．常有烦躁、尖叫","D．脑膜刺激征明显","E．前囟门隆起"]
流脑病人出现呼吸衰竭，最常见的原因是() ["A．呼吸中枢炎症损伤","B．毒素对呼吸中枢的抑制作用","C．枕骨大孔疝","D．天幕裂孔疝","E．肺部感染"]
腹膜腔肿瘤的USG表现有哪些?
目前我国治疗普通型流脑首选的药物是() ["A．磺胺类药","B．青霉素","C．氯霉素","D．氨苄西林","E．头孢菌素"]
脾血管瘤USG表现有哪些?
