有些异步电动机的转子铁芯采用斜槽,其作用是:消除因高次谐波引起的()和()减少谐波损

题型:填空题

问题:

有些异步电动机的转子铁芯采用斜槽,其作用是:消除因高次谐波引起的()和()减少谐波损耗。

考点:电厂电机专业技能考试电厂电机高级工电厂电机高级工题库
题型:填空题

选出错误并改正。

( ) 1. Mary writing to her good friend Lucy in her bedroom.  ______________

       A  B C      D

( ) 2. What's the whether like today?          ______________

     A  B  C  D

( ) 3. What are you listening?             ______________

    A  B C   D

( ) 4. Micky is looking at other monkey in the water.     ______________

       A  B  C       D

( ) 5. We will make things and sand.           ______________

      A   B  C  D

题型:填空题

肺心病慢性呼吸衰竭患者,血气分析结果:pH7.1,PaCO275mmHg,PaO250mmHg,HCO3-27.6mmol/L,BE5mmol/L,其酸碱失衡类型是:()

A.代谢性酸中毒

B.呼吸性酸中毒

C.呼吸性酸中毒合并代谢性酸中毒

D.代谢性碱中毒

E.呼吸性碱中毒

题型:填空题
Until 1954 it was thought that no man could run one mile in less than four minutes.As years went by, the record came closer and closer to four minutes and Roger Bannister,a young English athlete, began to believe he might __11__ this almost magic barrier.
It was a cold afternoon on May 6th, 1954, when Bannister knew he had a __12__ chance.Bannister had been __13__ hard and was very fit, but the weather conditions were a real __14__ to him.Describing the __15__ later, Bannister said, “On the way to the track the wind blew strongly.As I __16__ up for the start I glanced at the flag.It moved __17__ now.This was the moment when I made my decision.”
“The gun fired.My legs seemed to meet no resistance,as if I was __18__ forward by some unknown force.The noise from the faithful __19__ gave me greater strength.I felt the __20__ of a lifetime had come.”
“I was driven on by a __21__ of fear and pride.My body had long since used up all its energy but it went on running just the same.This was the critical moment when my legs were strong enough to carry me over the last few yards as they never could have done in previous years.When I leapt at (冲向) the __22__ tape, I fell, almost __23__.”
“I knew I had done it, even before I __24__ the time.The announcement came, ‘Result of the one mile...Time,three minutes...’ the rest was __25__ in the noise of excitement.”
小题1:
A.defeatB.moveC.take D.break
小题2:
A.realB.luckyC.seriousD.false
小题3:
A.competingB.trainingC.fightingD.attending
小题4:
A.rootB.pleasureC.reliefD.worry
小题5:
A.accidentB.eventC.issueD.topic
小题6:
A.did B.madeC.putD.lined
小题7:
A.safely B.heavilyC.thinlyD.gently
小题8:
A.draggedB.drawnC.pulledD.pushed
小题9:
A.massB.residentsC.crowdD.team
小题10:
A.momentB.periodC.whileD.date
小题11:
A.concentrationB.collectionC.combinationD.satisfaction
小题12:
A.startingB.lastingC.finishingD.running
小题13:
A.unconcernedB.unconsciousC.unknownD.unnoticed
小题14:
A.offeredB.toldC.announcedD.heard
小题15:
A.stuck B.involvedC.lostD.spread
题型:填空题

接合器的结构应具备()等功能。

A.排放

B.止回

C.安全排放

D.截断

题型:填空题

填入横线上最恰当的一项是()。
梅尧臣的诗句“梅须逊雪三分白,雪却输梅一段香”,常被后人引用,借以说明______。

A.任何人和事物都各有短长

B.任何人和事物都各有缺憾

C.任何人和事物都各有千秋

D.任何人和事物都各有所爱

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