试题与答案

已知三相交流线路的电压为380V,负荷为50kW,线路长为50m,功率因数为0.8,

题型:问答题 计算题

题目:

已知三相交流线路的电压为380V,负荷为50kW,线路长为50m,功率因数为0.8,使用截面为16mm2的导线,线间距离为600mm,求电压损失是多少(LJ—16型导线的电阻为1.98/km,其线间距离为600mm时的感抗为0.358/km)?

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0216/acdaebb199be3f683b22aab229736d32.html

下面是错误答案,用来干扰机器的。

参考答案:B, C, D解析:消极懒惰体现不爱岗敬业,不主动学习体现不提高技能,不提供合理化建议体现不参与管理。

试题推荐
题型:完形填空
Last year, I lost my best friend in high school. It seemed that everyone else’s life could just continue on in its  36 way, but mine couldn’t. I wasn’t sure how I was going to be able to face  37 and their gossip at school. I was forced to   38 my routine on Monday morning as usual. In the evening I returned home from school  39 completely defeated. All I wanted to do was  40 into bed and wallow(沉迷于)in my own self-pity. I pulled back the covers on my bed and  41 a pile of cards left by my dad. Each card included a(n)  42 that it was to be opened on a  43 night that week.
I made it through that week   44 my father. Each card 45 to say just what I needed to hear. Tuesday’s card said, “The past is painful to think about and the  46 is impossible to imagine. Don’t try. Just take it one minute at a time.” On Wednesday my mood  47 when I read, “What you are feeling now is   48 and normal. It still feels very bad, but it is part of the healing  49 .” Friday’s card contained a poem he wrote. The last lines made me smile through my tears. “Whatever special  50 you face along life’s way, may you  51 that you will find the best in every day.” I was instructed to open the last card  52 the party I went to on Saturday night. In it he wisely reminded me to  53 . “The world isn’t so bad after a good laugh. The more you laugh, the more you heal.” Each card was signed, “Love, Dad.”
My world once collapsed but I  54 the difficult breakup eventually. It owed to my dad , who made his  55 known when he couldn’t be present.
小题1:
A.pleasantB.strangeC.funnyD.normal
小题2:
A.everyoneB.anyoneC.someoneD.nobody
小题3:
A.work out B.meet withC.deal withD.come across
小题4:
A.makingB.feelingC.regardingD.onsidering
小题5:
A.crawlB.pushC.jumpD.draw
小题6:
A.inventedB.discoveredC.created D.wrote
小题7:
A.instructionB.explanationC.presentationD.information
小题8:
A.regularB.flexibleC.particularD.legal
小题9:
A.in favor of B.regardless ofC.in search ofD.because of
小题10:
A.seemedB.happenedC.occurredD.intended
小题11:
A.lifeB.futureC.dreamD.result
小题12:
A.fellB.passedC.fliedD.lifted
小题13:
A.falseB.honestC.naturalD.innocent
小题14:
A.contentB.processC.cureD.progress
小题15:
A.destructionB.competitionC.challengesD.destination
小题16:
A.trustB.guessC.predictD.succeed
小题17:
A.beforeB.sinceC.afterD.till
小题18:
A.cryB.screamC.singD.laugh
小题19:
A.got throughB.looked throughC.broke throughD.put through
小题20:
A.scheduleB.conceptC.soulD.confidence
查看答案
题型:单项选择题 案例分析题

患者男,70岁,因“咳嗽、咳痰伴喘息20余年,加重1周,高热、嗜睡2d”来诊。查体:P120次/min,R30次/min,BPl70/97mmHg;嗜睡;球结膜水肿,皮肤红润,口唇无明显发绀,无颈静脉怒张;双肺可闻及干、湿性啰音,心界不大,肝、脾未触及;双下肢轻度压凹性水肿,双侧腱反射减弱。血常规:WBC.12.8×109/L,N0.82。

其意识障碍最可能的原因是()

A.脑血管意外

B.低血糖昏迷

C.感染中毒性脑病

D.高血压脑病

E.肺性脑病

F.心源性休克

查看答案
微信公众账号搜索答案