风心病二尖瓣狭窄发生房颤后,常见的并发症是() ["心源性脑缺血综合征","动脉栓塞","肺部感染","亚急性细菌性心内膜炎","完全性房室传导阻滞"]
电热恒温干燥箱内温度一般采用()测定。 ["乙醇温度计","水银温度计","贝克曼温度计","热电偶"]
患者16岁,有癫痫大发作史,服药后已1年未发,近来自动停药。今晨开始有多次惊厥发作,在两次发作之间意识不恢复,来院急诊时有频繁发作的抽搐伴神志昏迷,首要治疗是() ["副醛8~10ml保留灌肠","苯巴比妥钠0.2g,肌内注射","地西泮(安定)10mg~20mg,静脉缓慢注射","苯妥英钠0.25g,肌内注射","异戊巴比妥500mg,静脉缓慢注射"]
脱位后患者常表现出各种体态。陈旧性骨折、脱位患者常见体态是() ["患肢缩短与外旋畸形","患肢增粗和缩短","脊柱侧弯畸形","患肢筋肉萎缩和细弱","膝关节僵直畸形"]
产超广谱β内酰胺酶(ESBLs)的肠杆菌科细菌,首选的治疗药物是() ["第三代头孢菌素类","碳青霉素类","糖肽类","酶复合制剂","头霉素类"]
短期边际成本曲线