采用满液式蒸发器的某水冷冷水机组,初调试后可以正常运行。但运行一段时间后,出水温度达不到设计要求,经检查发现冷媒过滤器处有结冰现象压缩机吸气压力下降明显、冷却水进口温度25℃、冷水流量超过额定流量20%,蒸发器视窗显示液面降低。问:造成冷水机出水温度不达标的原因,最有可能是以下哪几项?()

A、冷水流量过大
B、冷媒过滤器堵塞
C、冷却水进口温度偏低
D、冷媒泄露
查看答案
正确答案:

BD

答案解析:

暂无解析

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PartIIICloze

Directions:Therearetwentyblanksinthefollowingpassage.Foreachblanktherearefourchoices.ChoosetheonethatbestfitsintothepassageandthenmarksyouranswerontheAnswerSheet.

In1982,MarkThatcher,thesonofMrs.Thatcherwasreported61intheSaharaDesertwhilecompetingintheGrandPrixmotorracefromParistoDakar.Thissadnews,so62,shooktheusuallycalmandunperturbedseasonedpolitician63herbalance.Thoughshedidherbesttopretendasif64hadhappenedandmadeherpublicappearancesasusual,peoplecouldnot65tonoticethatshewasnolongertheold66primeministerwhoalwayshadeverything67control.68shehadbecomeaverysadmotherwhowasunabletorecoverfromhershock.

Oneday,whenshewastospeakataluncheonparty,areportercaughther69herguardby70upthesubjectofhermissingsonagain.Shewastotallymentally71forthequestionandlostherselfcontrol.Tearswererollingdownhereyesasshesobbinglytoldthereporterthatthere72stillnonewsofMarkandthatshewasveryworriedabouthim.Shesaidthatallthecountries73hadpromisedtodotheirbesttohelpherfindherson.74thatshebrokedowncompletelyandsobbedsilentlyforquiteawhile.Graduallyshe75downandstartedtospeakas76.itwasaverymovingscenewhich77anewsideofMrs.Thatcher’scharacterthepublicdonotusuallysee,78peoplebegantotalkabouttheIronWoman’smaternallove,asentimentthatis79toallhumankind.

LaterMarkreturned80andsoundtohismother’sside,good-humoredandallsmilesasusual,asifnothingunusualhadeverhappened.TheIronWoman,however,brokedownagainaswassobbingforthesecondtime.

61.A.missingB.missedC.wantingD.wanted

62.A.expectedB.expectingC.unexpectedD.unexpecting

63.A.withB.onC.outD.off

64.A.somethingB.anythingC.nothingD.everything

65.A.missB.failC.pretendD.expect

66.A.reassuredB.self-assuredC.assuringD.self-assuring

67.A.forB.beneathC.belowD.under

68.A.InsteadB.howeverC.ThereforeD.So

69.A.intoB.outofC.onD.off

70.A.puttingB.bringingC.takingD.giving

71.A.readyB.preparedC.unpreparedD.unexpected

72.A.wasB.wereC.shouldbeD.wouldbe

73.A.concerningB.concernedC.worryingD.worried

74.A.AtB.BeforeC.AfterD.With

75.A.satB.brokeC.calmedD.became

76.A.plannedB.planningC.plansD.aplan

77.A.explainedB.exposedC.excludedD.exclaimed

78.A.howeverB.insteadC.soD.but

79.A.universalB.uniqueC.singleD.strange

80.A.safeB.safelyC.sightD.hearing

当决定从阴道手术助产时,为了确诊胎方位,应从哪条颅缝结合囟门检查来作依据

A、冠状缝
B、人字缝
C、矢状缝
D、额缝
E、颞缝

正常胎动为

Thatradiocompanyissobigthatithasalotof____inforeigncountries.

A、introducers
B、instructors
C、conductors
D、agents

PartIReadingComprehension

Directions:Inthisparttherearefourpassages.Eachpassageisfollowedbyfourcomprehensionquestions.Readthepassageandanswerthequestions.ThenmarkyouranswerontheAnswerSheet.

Passage1

Questions1to5arebasedonthefollowingpassage:

Someyearsagothecaptainofashipwasveryinterestedinmedicine.Healwaystookmedicinebookstoseaandlikedtotalkaboutdifferentdiseases.

Onedayalazysailoronhisshippretendedtobeill.Helayonhisbunk(铺)andgroanedasifhewereverysick.Thecaptaincametoseehimandwasverypleasedtohaveapatienttolookafter.Hetoldthemantorestforafewdaysandmadetheothersailorsdohiswork.Threedayslateranothersailorpretendedthathehadsomethingwrongwithhischest.Oncemorethecaptainlookedinhismedicalbooksandtold“sick”mantohavearest.

Theothersailorswereveryangrybecausetheyhadmoreworktodo.Thepatientshadthebestfoodandlaughedattheirfriendswhenthecaptainwasnotlooking.Atlastthemate(船长副手)decidedtocurethe“sick”men.Hemixedupsomesoap,soot(烟灰),glue(胶水)andotherunpleasantthings.Thenheobtainedpermissionfromthecaptaintogivehismedicinetothe“sick”men.Whentheytastedthemedicine,theyreallydidfeelill.Itwassohorriblethatoneofthepatientsjumpedoutofhibunk,ranupondeskandclimbedthehighestmastontheship.Hedidnotwantanymoremedicine.

Thematetoldbothofthementhattheymusttakethemedicineeveryhalfanhour,nightandday.Thissooncuredthem.Theybothsaidtheyfeltbetterandwantedtostartwordagain.Thecaptainrealizedthatthementriedtodeceivehimsohemadethemworkveryhardfortherestofthevoyage.

1.Thefirstsailorpretendedtobeillbecausehewantedto.

A.testthecaptain’sknowledgeofmedicineB.befreefromwork

C.havethebestfoodontheshipD.playajokeonhisfriends

2.Whenthecaptainknewasailorwasill,he.

A.didn’tcaremuchB.sentforadoctor

C.lookedafterhimandtoldhimtohavearestD.gavehimsomemedicine

3.Thepatientsfeltbetterquicklybecause.

A.theyhadbeengivenpropermedicine

B.theylearnedthatthecaptainhadfoundoutthetruth

C.theywerelaughedatbytheirfriends

D.themedicinethemategavewashorrible

4.Whenthecaptainknewhehadbeendeceived,he.

A.toldthemnottodosoagainB.losthistemper

C.madethemworkharderD.firedthem

5.Whichofthefollowingbestsummarizesthepassage?

A.AsuddenCure.B.TwoPatients.C.CaptainandSailors.D.ADifficultVoyage.

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