根据流感病毒核蛋白抗原性的不同,流感病毒又可分为几型() ["1型","2型","3型","4型","5型"]
用加气混凝土砌块砌筑墙体时,墙底部应使用普通砖砌筑,砌筑高度不小于() ["100mm","150mm","180mm","200mm"]
某男,30岁,发热一周入院。入院次日热势转剧(体温39.5℃),伴白睛黄染,身黄,尿黄,第3日见壮热烦渴,身目黄色如金,烦躁不安,舌红绛,苔黄干,脉洪大,应辨证为() ["黄疸胆腑郁热型","黄疸湿热兼表型","黄疸湿重于热型","黄疸疫毒发黄型","黄疸热重于湿型"]
手提式、推车式水基型灭火器出厂时间达到或者超过()年应予以报废处理。 ["6","10","12","15"]
对肠套叠下列哪一种情况不应采取非手术疗法()。 ["病程不超过48小时,全身情况好","无腹膜炎体征","小肠型肠套叠","无明显脱水及离子紊乱","无明显腹胀"]
一380V三相线路,供电给下表所示4台电动机,计算该线路的尖峰电流。(Ijs=为起动电流与额定电流差值最大一台电动机的起动电流)