小接地电流系统单相接地故障时,故障线路的零序电流与非故障线路的零序电流相位相差是() 发布时间:2017-07-06 05:28 │ 来源:www.tikuol.com 题型:单项选择题 问题: 小接地电流系统单相接地故障时,故障线路的零序电流与非故障线路的零序电流相位相差是()。A、90°B、180°
题型:单项选择题 — Have you heard of that?Tom recently bought a new car and an expensive flat. — ________? He even couldn’t have enough money to pay for the rent. A.How aboutB.Why notC.How comeD.So what 查看答案
题型:单项选择题 男性,73岁,原有肺心病,感冒后病情加重,咳脓痰,发热、烦躁,继之出现神志模糊,嗜睡。查体:口唇发绀,昏迷,血压14.7/9.33kPa(110/70mmHg),无病理反射,可能的诊断是()A.休克B.脑血管意外C.消化道出血D.肺性脑病E.弥散性血管内凝血 查看答案