男,34岁,因急性阑尾炎穿孔伴局限性腹膜炎,行阑尾切除术后5天。仍有腹痛,腹胀,体温38℃以上,大便3~5次/天,有下坠感。血WBC18×109/L首先考虑为() ["A.切口感染","并发肠炎或菌痢","并发膈下脓肿","盆腔脓肿","化脓性门静脉炎"]
男性,35岁,支气管哮喘史20年。2天前出现咳嗽伴气喘,吸入沙丁胺醇症状稍缓解。今日气急加重。查体:焦虑,大汗,口唇发绀,呼吸34次/分,心率130次/分,有奇脉,两肺广泛哮鸣音应立即做哪项检查() ["A.胸部X线","动脉血气分析","呼吸功能测定","心电图","血常规"]
尿液呈深黄色,振荡时产生黄色泡沫,最可能是() ["胆红素尿","含铁血黄素尿","服用维生素B12","尿胆原阳性尿","肌红蛋白尿"]
下列属于干油酥性能的是()。 ["有韧性","有弹性","有可塑性","有延伸性"]
细胞外液的主要阳离子时() ["K+","Mg2+","Na+","Ca2+","Fe2+"]
汽油机燃箱喷射电控制单元将发动机转速和负荷信号作为主控信号,确定()