男孩下尿路梗阻的最常见病变是()小儿上尿路梗阻最常发生梗阻的部位是() ["A．重肾双输尿管","B．肾盂输尿管连接部梗阻","C．输尿管膀胱交接部梗阻","D．输尿管开口异位","E．尿道瓣膜症"]
CT平扫，肝脏密度一致性增高，最可能的诊断是() ["A．肝淋巴瘤","B．弥漫性肝癌","C．血色病","D．肝脓肿","E．脂肪肝"]
指出上述处方中各成分的作用 ["亲水凝胶基质防腐剂保湿剂中和剂A、卡波普940","B、丙二醇","C、尼泊金甲酯","D、氢氧化钠","E、纯化水"]
下述正常脾脏CT表现，哪项不对() ["A．脾脏上下径<15cm","B．CT平扫，比肝脏略高","C．平扫CT值，30～70HU","D．脾脏厚度3～4cm","E．脾脏强化先于肝脏"]
胃扭转()先天性肥厚性幽门狭窄()幽门痉挛() ["A．喷射样呕吐，可见胃型并摸到橄榄样肿块","B．生后即出现呕吐，喷射性，不含胆汁，无橄榄样肿块","C．生后即出现不规则呕吐，不含胆汁，无橄榄样肿块，阿托品治疗有效","D．生后出现呕吐，不舍胆汁，无橄榄样肿块，喂稠奶，采用俯卧位有效","E．生后出现呕吐，不含胆汁，X线检查胃大弯位于小弯之上"]
轻度脱水()中度脱水()重度脱水()
