百分数化成分数后都是真分数.   (判断对错)

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百分数化成分数后都是真分数.判断对错
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  • Meetingpeoplefromanotherculturecanbedifficult.Fromthebeginningpeoplemaysendthewrongsignal.Ortheymaypaynoattentiontosignalsfromanotherpersonwhoistryingtodeveloparelationship. Differentculturesemphasizetheimportanceofrelationshipbuildingtoagreaterorlesserdegree.Forexamplebusinessinsomecountriesisnotpossibleuntilthereisarelationshipoftrust.Evenwithpeopleatworkitisnecessarytospendalotoftimeinsmalltalkusuallyoveraglassofteabeforetheydoanyjob.InmanyEuropeancountries﹣liketheUKorFrance﹣peoplefinditeasiertobuildupalastingworkingrelationshipatrestaurantsorcafesratherthanattheoffice. Talkandsilencemayalsobedifferentinsomecultures.IoncemadeaspeechinThailand.Ihadexpectedmyspeechtobeasuccessandstartalivelydiscussioninsteadtherewasanuncomfortablesilence.Thepeoplepresentjuststaredatmeandsmiled.AftergettingtoknowtheirwaysbetterIrealizedthattheythoughtIwastalkingtoomuch.Inmyowncultureweexpressmeaningmainlythroughwordsbutpeopletheresometimesfeeltoomanywordsareunnecessary. EvenwithinNorthernEuropeculturaldifferencescancauseseriousproblems.CertainlyEnglishandGermanculturessharesimilarvalueshoweverGermansprefertogetdowntobusinessmorequickly.Wethinkthattheyarerude.Infactthisisjustbecauseoneculturestartsdiscussionsandmakesdecisionsmorequickly. Peoplefromdifferentpartsoftheworldhavedifferentvaluesandsometimesthesevaluesarequiteagainsteachother.Howeverifwecanunderstandthembetteramulticulturalenvironmentwillofferawonderfulchanceforustolearnfromeachother. 1Insomecountrieseatingtogetheratrestaurantsmaymakeiteasierforpeopleto. A.developcloserrelations B.sharethesameculture C.gettoknoweachother D.keepeachothercompany 2TheauthormentionshisexperienceinThailandtoshowthat. A.toomanywordsareofnouse B.theEnglishprefertomakelongspeeches C.peoplefromThailandarequietandshybynature D.eventalkandsilencecanbeculturallydifferent 3Accordingtothetexthowcanpeoplefromdifferentculturesunderstandeachotherbetter? A.Bysharingdifferentwaysoflife. B.Byacceptingdifferenthabits. C.Byrecognizingdifferentvalues. D.Byspeakingeachother'slanguages. 4Whatwouldbethebesttitleforthetext? A.MulticulturalEnvironment. B.Cross﹣CulturalDifferences. C.HowtoUnderstandEachOther. D.HowtoBuildUpaRelationship.
  • 六1班学生人数的等于六2班学生人数的已知六2班有48人六1班有
  • WomenhavebeendrivingyellowcabsinNewYorksincethe1940sbut99%ofdriversaremale.Evenamongdriversofcarsbookedbyphoneoronlineonly4%arewomen.ThatmaychangewiththelaunchofSheTaxisanappthatletsfemalepassengersinsistonfemaledriversandviceversa. ItwillbeavailableinNewYorkCityWestchesterandLongIslandandthefirmplanstoexpandtoothercities.StellaMateothefounderisbettingthatquiteafewwomenarenervousandwearyofgettingintocarsdrivenbymen.Theservicemayalsoappealtothosewhosereligiousbeliefsforbidthemtotravelwithunrelatedmen.Eachdriverwearsapinkpashmina.Menwhoaskforaridewillbedirectedtoanothercarservice. SimilarservicesthriveinIndiaSouthAfricaandseveralMiddleEasterncities.Japanhashadwomen﹣onlyrailwaycarriagesonandoffsince1912.KnownashanadenshaflowertrainstheyoffershelterfromthegroperswhomakerushhourinTokyosodisagreeable. ButSheTaxisfacestwospeedbumps.Oneispractical.Demandhasbeensogreatthatthefirmhashadtodecelerateitslaunchuntilitcanrecruit500drivers.Theotherobstacleislegal.ByemployingonlyfemaledriversSheTaxisisobviouslydiscriminatingagainstmen.Sinceanti﹣discriminationlawisnotalwaysappliedwithcommonsensethatmaybeillegal.Andthereisnoshortageofpotentiallitigants诉讼当事人.YellowcabbiesarefuriousatthegrowthofonlinetaxifirmssuchasUber.It'snothardtoimagineaguyfilingsuitsaysSylviaLawofNewYorkUniversityLawSchool.SheTaxis'defencewouldprobablybethatitsdriversareallindependentcontractors. Becausethefirmcatersonlytowomenitisdiscriminatingagainstmalecustomerstoo.IsthatlegalAngelaCornellofCornellLawSchoolthinkstherecouldbealoophole.NewYork'sHumanRightsCommissioncouldmakeanexemptiononthegroundthatSheTaxioffersaservicethatisinthepublicinterestwomenfeelsafernotgettingintocarswithstrangemen.Women﹣onlycollegesareallowedsowhynotwomen﹣onlycabsThesnagisthatsomemenmayalsofeelsafergettingintocabswithfemaledrivers.Astudyin2010foundthat80%ofcrashesinNewYorkCitythatkillorseriouslyinjurepedestriansinvolvemaledrivers.Womendriversaresimplybetter. 1ItcanbeinferredthattheserviceofSheTaxismayappealto. A.womenwhoarenervousabouttaxidrivers B.womenwithcertainreligiousbeliefs C.womenwhoaretiredoftakingtaxis D.menwhoaskforaride 2ThewordgropersPara.3probablyrefersto. A.peoplewhocauseatrafficjam B.menwhomakesexualharassmenttowomen C.menwhocausetherushhourinTokyo D.peoplewhomaketakingtrainsdisagreeable 3IfSheTaxisisaccusedofdiscriminatingagainstmenitmay. A.decelerateitslaunchasanonlinetaxifirm B.employbothmaleandfemaledrivers C.makeanti﹣discriminationlawnotapplicable D.springtothedefenceofitsdrivers 4SheTaxismaybeexempt被豁免的fromillegalitybyNewYork'sHumanRightsCommissionbecause. A.itsserviceprovidedisbasedonthepublicinterest B.itdiscriminatesagainstmalepassengers C.itprovidesservicealsoformalepassengers D.itdecreasescrashescausedbymaledrivers
  • 班级人数一定缺勤人数与出勤人数成反比例.判断对错
  • 1分It'soverthreeyearssincethereleaseofanimationFrozenbuttheicyqueenandherfrozenempirearestillstayingputinthespotlightasifthemovieonlylastmonth. A.werereleased  B.hadbeenreleased  C.wouldhavebeenreleased  D.wasreleased.
  • 函数fx=Asinωx+φA>0ω>0的部分图象如图所示则f0的值是
  • RidingSchool Youcanstarthorse﹣ridingatanyage.Chooseprivateorgrouplessonsanyweekday.Thereare10kilometersoftracksandpathsforleisurelyridesacrossfarmlandandopencountry.Youwillneedaridinghat. OpeningHoursMondaythroughFriday900a.m.﹣830p.m.330p.m.onSaturdays Phone412396﹣6754Fax412396﹣6752 SailingClub OurYoungSailor'sCourseleadstotheStage1Sailingqualification.Youwilllearnhowtosailsafelyandthecoursealsocoverssailingtheoryandfirstaid.Havefunwithothercoursemembersafterwardsintheclubroom.Thereare10weeklytwo﹣hourlessons. OpeningHoursTuesdays600p.m.﹣800p.m. Phone412396﹣6644Fax412396﹣6644 DivingCentre Ourexperiencedinstructorsofferone﹣monthcoursesindeep﹣seadivingforbeginners.Therearetwoeveninglessonsaweekinwhichyoulearntobreatheunderwaterandusetheequipmentsafely.Youonlyneedswimmingcostumeandatowel.Reducedratesforcouples. OpeningHoursMondayandFriday630p.m.﹣830p.m. Phone412396﹣6312Fax412396﹣6706 MedicalCenter ThestaffoftheMedicalCenteraimtoprovideconvenientandcomprehensivemedicalcaretostudentsandstaffoftheuniversity.Thecenteriswellequippedandthestaffherearetrainedtodealwithabroadrangeofmedicalproblems.Bothfemaleandmaledoctorsaswellasnursingstaffareavailableforconsultation.Alsoallkindsofmedicinesaresoldhereandarecheaperforstudentsthanotherdrugstores. OpeningHours24hoursfromMondaytoSunday Phone412396﹣6649Fax412396﹣6648 WatersportsClub Weuseatwo﹣kilometerlengthofriverforspeedboatracingandwater﹣skiing.Abeginners'courseconsistsoften20﹣minutelessons.Youwilllearntohandleboatssafelyandconfidentlybutmustbeabletoswim.Theclubisinaconvenientcentralpositionandisopendailyfrom9a.m.to4p.m.withlessonsallthroughtheday. OpeningHoursMondaythroughFriday900a.m.﹣400p.m. Phone412396﹣6899Fax412396﹣6890 1Ifyouwanttoswimandenjoyactivitieswhicharefastandabitdangerousyoushouldjoin. A.DivingCentre B.RidingSchool C.WatersportsClub D.SailingClub 2Ifyouwanttoexperienceanewactivityinthecountrysideinthemorningsyoumayfax. A.412396﹣6752 B.412396﹣6648 C.412396﹣6890 D.412396﹣6706 3Ifyouareplanningtoexploretheoceandepthsyoushouldattendyourlessonsat. A.MondaythroughFriday900a.m.﹣830p.m. B.24hoursfromMondaytoSunday C.Tuesdays600p.m.﹣800p.m. D.MondayandFriday630p.m.﹣830p.m. 4WhichisNOTtheconveniencethattheMedicalCenterprovides? A.Welltrainedstaffmembers. B.Nurseryfornewly﹣bornbabies C.Goodequipment. D.Variouslessexpensivemedicines.
  • 1分﹣I'mhungry.Doyouwanttogetmuchlunchnow? ﹣Sure.Let'strytheSafariCafé.I'mintheforahamburgerandFrenchfries. A.emotion B.mood C.fancy D.vision
  • 杨嫂在再就业中心的扶持下创办了润扬报刊零售点经营某种晚报杨嫂提出了如下信息 1买进每份0.2元卖出每份0.3元 2一个月内有20天每天可以卖出200份其余每天只能卖出120份 3一个月内每天从报社买进的报纸份数必须相同当天卖不掉的以每份0.1元退回报社. 杨嫂今年6月每天买进该种晚报150份这个月的利润是多少元
  • 在直角坐标系xOy中抛物线Cy2=4x的焦点为F准线为lP为C上一点PQ垂直l于点QMN分别为PQPF的中点直线MN与x轴交于点R若∠NFR=60°则NR=
  • 半径是5厘米的圆它的周长和面积相等.判断对错
  • 在539三个数中左边的数是右边的数是中间的数是.
  • 吨的是吨小时的是2小时.
  • Thereisatreadintravellingthatissweepingthenation﹣it'sbeingcalledvoluntourism.ForeigndestinationsareattractingAmericancitizenswhowanttosightseewhileatthesametimeengageincommunityservice. Photosonawallareofrecentvisitstoanorphanage孤儿院inIndia.It'satripJimInnersfirstmadeafterlookingamoremeaningfulwaytoseetheworld.ThroughtheAustin﹣basedMiracleFoundationInnershastraveledtoIndiathreetimesaspartofagrowingtrendcalledvoluntourismwhichcombinesforeigntravelwithcharitywork. You'reliving.You'renotjustsendingachecktohelpsomebodybutyouhavealittlegirlalittleboy.You'retheirlifelinetoanewlife.saidInnersSiliconLabsco﹣founderNavSoochrecentlyraisedmoneytobuildavillagefororphansinIndiaandhastraveledthereseveraltimes.Hesaysit'spossibletosightseeandservetheneedy. IthinkitwouldbeashametogotoIndiaandnotseetheTajMahal.It'sawonderfulplaceandIthinkyoucanhavethataswellastherealinteractionwithrealpeople.saidSooch. We'vehadallages.We'vehadfrom21/2withafamilyallthewayuptoan82﹣year﹣oldandthat'sthebeautyofthesetrips.saysBarbaraJoubert.Sheplansthe9﹣dayjourneysonbehalfoftheMiracleFoundation.Shesaysitappealstothosewhowanttogiveback.Sothemostbasicworkorwhatyou'redoingthereislovingthekidsandit'snothard.saidJoubert. Spendingtimewithallthesekidshasbeenwonderful.saysInners.VoluntourismwilltakeJimInnersbacktoPinkythegirlwhocallshimPapaJim. 1Accordingtothetextvoluntourism. A.iskindoftravelorganizedbytravelcompanies B.isawayofearningmoneybytraveling C.isacertaintravelwhileofferingcommunityservice D.iskindoftraveltoenjoythelocalcultures 2AccordingtothetexttheMiracleFountain. A.isintendedtohelpthepoorareas B.mainlyhelpsplanvoluntourism C.belongstoalargetravelcompany D.isorganizedtoofferserviceinIndia 3WhatdoesInnersmeanbysayingYou'retheirlifelinetoanewlife.inparagraph3? A.You'llhavetolookaftertheirfuturelife. B.Youneedtosendmoneytohelpthepoor. C.Youwillallowthemtobeyourfamilymembers. D.Youhaveagreateffectontheirfuturelife. 4What'sthepurposeofthetext? A.Tomakevoluntourismmorepopular. B.Topersuadereaderstohelpthepoor. C.Togiveyouadviceonvoluntourism. D.Tointroducereadersvoluntourism.
  • 沿着圆柱的高剪侧面展开得到一个它的一条边就等于圆柱的另一条边就等于圆柱的.
  • 假定你是李华对中国传统医药很感兴趣.你获悉中国药学家屠哟哟因发现了青篙素被授予2015年诺贝尔生理学或医学奖.请给你的美国朋友David发一封邮件分享此消息.信件须包括以下内容 心情骄傲和激动. 评价她找到了治疗疟疾的方法数千万人从中受益. 志向立志考入屠哟坳的母校北大造福人民. 注意1.词数100左右 2.可以适当增加细节以使行文连贯 3.开头和结尾已为你写好. 参考词汇 1.药学家pharmacologist 2.青篙素artemisinin 3.2015年诺贝尔生理学或医学奖The2015NobelPrizeinPhysiologyorMedicine 4.疟疾malaria DearDavid
  • 设函数fx=2|x﹣1|+|x+2|. Ⅰ求不等式fx≥4的解集 Ⅱ若不等式fx<|m﹣2|的解集是非空集合求实数m的取值范围.
  • Indianpolicecannotdecidewhethertotreatitasanextremelycleveractofstealingoranevencleverercheat.Eitherwayitcouldbetheperfectcrimebecausethecriminalsarebirds﹣homingpigeons! Thecrimebeginswithatelephonemessagetotheownerofastolencarifyouwantthecarbackpayup.Thenthecarownerisdirectedtoaparktoldwheretofindabirdcageandhowtoattachmoneytotheneckofthepigeoninside.Carryingthemoneyinatinybagthepigeonfliesoff. Therehavebeenatleastfoursuchpigeonpick﹣upsinIndia.Whatatfirstseemedliketheworkofacleverstay﹣at﹣homecarthiefhowevermayinfactbetheworkofanevenlazierandmoreinventivecriminalmind﹣onethatavoidsnotonlycollectingmoneybutgoingouttostealthecarinthefirstplace.PoliceofficerMohammedsaysthatthecriminalprobablyhaspulledadoubletrickhegetsmoneyforthingshecannotpossiblyreturn.Insteadofstealingcarsheletssomeoneelsedoitandthenwaitsforthecar﹣ownertoplaceanadvertisementinthenewspaperaskingforhelp. Thetheoryissupportedbythefactthatsofarnoneofthestolencarshavebeenreturned.Alsotheamountofmoneydemanded﹣under30000rupees﹣seemstoolittleforacarworthmanytimesmore. Demandsforpigeon﹣deliveredmoneystoppedassoonasthepressreported thestory.AndeveniftheystartagainMohammedholdslittlehopeofcatchingthecriminal.Wehavemoreimportantthingstodohesaid. 1Afterthecarownerreceivedaphonecallhe. A.wenttoacertainpigeonandputsomemoneyinthebagitcarried B.gavethemoneytothethiefandhadhiscarback C.sentsomemoneytothethiefbymail D.toldthepressaboutit 2Thelazierandmoreinventivecriminalrefersto. A.thecarthiefwhostaysathome B.oneofthepolicemeninIndia C.theownerofthepigeons D.oneofthosewhoputtheadsinthepaper 3Thewritermentionsthefactthatnoneofthestolencarshavebeenreturnedtoshow. A.themoneypaidistoolittle B.thethiefisextremelyclever C.howeasilypeoplegetfooledbycriminals D.whatMohammedthinksmightbecorrect 4Wemayinferfromthetextthatthecriminalknowshowtoreachthecarownersbecause. A.helivesinthesameneighborhood. B.hereadstheadsinthenewspaper. C.hehasseenthecarownersinthepark. D.hehastrainedthepigeonstofollowthem.
  • 20分Ipromiseyoutherewillneverbeaperfecttimetodoanythinginyourlife.36willeverfeel100%certainormakeperfectsensetoyouandeveryoneelse.Therewill37beaperfecttimetofallinloveortotraveltheworld.Youwillneverhaveenoughtrainingenoughpreparationorenoughmoney.And38thisevenwhenyoufeelreadytotakeabravestepintothe39otherswilllikelytryto40yououtofit.Becausetheywon'tfeelreadythemselvesandyourambitionandbraverywill41theirlevelsofcomfort.Butyoudon't42themanexplanationoranyotherpersonal43youdon'twanttomake.Thisisratherdifficultto44atfirst. Waitingtofeel100%readyorsureisthe45wayinwhichwecheatourselvesoutofwonderfullifeexperiences.Ichallengeyouto46freeyourselffromthisself﹣limitingstateofmind.Bookthatplaneticketevenifyoufeellotsof47.Signupforthateducationalcourseevenifyouhavenoidea48itwillgo.TrustmewhenItellyouitwillallcometogetherforthe49. Whenyoumeetyourdreamswith50whenyoumeetthemwithmentalandphysicaldevotionyou51yourtrustintheactofLIVING.Youmakeyourdreamsa52insteadoflineitemsonalist.Andthat'sgoodbecauseyourdreamsare53tobeexperiences.Youhaveto54themoutintherealworldtoknowifthey'repossibleandworthwhileadventuresinthelongrun. Asyou55onthisnewjourneyoflivingrememberthatsomepeoplearoundyouwillnaturallybetakenaback.Butaslongasyouaren'thurtingthemyoudon'towethemanythingthattakesawayyourpowertomoveforwardwithyourlife. 36.A.Something B.Nothing C.Anything D.Everything 37.A.never B.always C.occasionally D.forever 38.A.despite B.for C.from D.after 39.A.impossible B.unknown C.beautiful D.true 40.A.help B.cheat C.talk D.get 41.A.improve B.remove C.increase D.challenge 42.A.offer B.give C.allow D.owe 43.A.excuse B.decision C.sacrifice D.profits 44.A.refuse B.grasp C.admit D.confirm 45.A.hardest B.bitterest C.easiest D.dullest 46.A.automatically B.casually C.vainly D.consciously 47.A.uncertainty B.comfort C.anxiety D.hopelessness 48.A.how B.when C.why D.whether 49.A.worse B.better C.closer D.deeper 50.A.difficulty B.doubt C.intention D.success 51.A.carry B.remove C.experience D.invest 52.A.reality B.priority C.burden D.relief 53.A.meant B.listed C.realized D.entitled 54.A.check B.bring C.work D.test 55.A.wander B.rest C.progress D.hesitate
  • 1分AsadoctorIspendmostofthetimewithmypatientsandthat'sitisinmyday. A.how B.when C.why D.where
  • 一如图的蒙古包是由一个圆柱和一个圆锥组成的.这个蒙古包所占的空间是多少立方米
  • 小明做了一个圆柱体容器和几个圆锥体容器尺寸如图所示单位cm将圆柱体内的水倒入圆锥体内正好倒满.
  • 8分Atatimewhenmanystudentsstillseecollegeastheirbesthopeforarewardingcareerhighereducationhasbecomemoreexpensivefarmorethanthesteadyincreaseinthecostofliving.Asaconsequenceaveragestudentdebtatgraduationiscurrentlypushing$30000.Insomecasesstudentdebtreachessixfigures. Butfallingbeyondthereachofthesefrighteningstatisticsaremanycapablestudentswhodon'taccumulatestudentdebtbecausetheycan'taffordtogotocollegeinthefirstplace. WhichraisesaquestionWouldn'tournationbebetteroffifallAmericanstudentswereencouragedorevenassistedbypublicpolicytopushtheirintellectualcapacitiestotheirmaximums?Whatifallhighereducationinourcountrywereextremelyaffordable?Orevenfree? AsithappenstheAssociatedPressreportedthatbothOregonandTennesseeareconsideringthefeasibility可行性ofno﹣tuitionpoliciesfortheircommunitycolleges. ThelogicbehindtheseeffortsiswellexplainedbyOregonStateSenatorMarkHassIthinkeverybodyagreesthatwithahighschooleducationbyitselfthereisnopathtothemiddleclass.Thereisonlyonepathanditleadstopoverty.Andpovertyisveryexpensive. Hassmayoverstatethecaseslightly.Despitethelackofgoodblue﹣collarjobsinourcountryobsthatwouldfirmlyestablishaworkerinwhatt'sleftofthemiddleclassandprovidepaidvacationapensionandhealthinsurancehighschoolgraduatemightstillpiecetogetherenoughworktokeephimselfmoreorlessabovethepovertylineeventhoughaccesstothetrueAmericanDreamwillstillbeverydifficult. ButthesecondpartofHass'sargumentisundeniable.Ourfailuretoeducateourselvestoourfullpotentialisveryexpensive.HassreferstoresearchfromtheOregonUniversitySystemthatindicatesthatOregonianswithonlyahighschooldegreemakelessmoneyandthereforepayfewertaxesthanthosewithcollegedegrees.Theyarealsomorelikelytorequirefoodstampsandothersortsofpublicassistance.RepublicansandDemocratsagreeonthis. Clearlythecloserwecometoreachingourfulleducationalcapacityasindividualsandasanationthelesslikelywearetobecomecriminalsandprisoners.Infactit'shardtothinkofasocialillthat'sunlikelytobeimprovedbymoreeducation. Butofcoursethere'snosuchthingasfreecollege.Thetaxpayershavetocomeupwiththemoney. Butwouldourcountrybebetteroffifallstudentshadarealopportunitytopushtheireducationalcapacitiestothelimit?Ofcourse.Therearelong﹣termsocialbenefitsthatideologyfoolsusintobelievingareunattainable.ButversionsofthesegoodsandothershavebeenachievedelsewhereandtheycouldbeachievedintheUnitedStatesaswell.Theymayrequiresomeremedy矫正补救toournation'sunfairredistributionofwealthinthedirectionofthealready﹣wealthybutmoreequalityinincomeandwealthwouldbeahealthystepaswell. SogoodforyouOregonandTennessee.Mostoftheworld'sproblemscomefromignoranceintolerancegreedandbackwardness.Educationisaveryimportantremedy. 62.What'stheproblemwiththecurrentcollegeeducation? A.Itcan'tpreparestudentsforapromisingfuture. B.Itfailstorecognizeandadmittalentedstudents. C.Itbecomeslessaccessibletostudentsfinancially. D.Itlacksasetofevaluatingcriteriaforstudents. 63.Accordingtothepassageagraduatewithonlyahighschooldegreewill. A.likelybecomeanestablishedworker B.havenomeanstomakealiving C.neverbeamemberofmiddleclass D.findithardtorealizeAmericanDream 64.WhatdoestheunderlinedpartinParagraph5probablymean? A.Poorpeopleareacostlyburdentosociety. B.Poorfamiliescan'taffordschooling. C.Educationforpoorchildrenisexpensive. D.Povertyisrelatedtohigheducationfees. 65.What'sthepurposeoftheauthorwritingthispassage? A.Todescribethelong﹣termplansforeducation. B.Toargueforfreehighereducation. C.Toexplaintheimportanceofeducation. D.Tofightagainstunfairwealthdistribution.
  • 在直角坐标系xOy中曲线C1的参数方程为α为参数.P是曲线C1上的动点将线段OP绕O点顺时针旋转90°得到线段OQ设点Q的轨迹为曲线C2.以坐标原点O为极点x轴正半轴为极轴建立极坐标系. Ⅰ求曲线C1C2的极坐标方程 Ⅱ在Ⅰ的条件下若射线与曲线C1C2分别交于AB两点除极点外且有定点M40求△MAB面积.
  • 有两桶油甲桶油比乙桶油少15千克现在把乙桶油的倒入甲桶这时甲桶油比乙桶油多5千克乙桶油原来有多少千克
  • ThehabitofreadingisoneofthegreatestresourcesknowntomankindandIenjoyreadingbooksthatbelongtomemuchmorethaniftheyareborrowed.Aborrowedbookislikeaguestinthehouseanditshouldbetreatedwithcare.Youcannotleaveitcarelesslyyoucannotmarkitandyoucannotuseitasyoulike.Andthensomedayyoureallyoughttoreturnit.Ifitisadistinguishedguestitreallymakesyoufeelemptywhenheorsheleaves.It'sthesamewithagoodbook. Howeveryourownbooksbelongtoyou.Booksareforusenotforshowyoushouldownnobooksthatyouareafraidtomarkuporafraidtoplaceonthetablewideopenandfacedown.Agoodreasonformarkingfavoritepassagesinbooksisthatthispracticeenablesyoutoremembermoreeasilythesignificantpassagesandtorefertothemquickly. Oneshouldhaveone'sownbookshelveswhichshouldnothavedoorsglasswindowsorkeystheyshouldbefreeandeasytouse. Mydevotiontoreadinghasnevermademeapersonwholivesalone.Howcoulditbe?Booksareofthepeoplebythepeopleandforthepeople.Literatureisanimmortalpartofhistoryitisthebestandmostlastingpartofpersonality.Thetruthofourlifeisthatthegreatdeadarebeyondourreachandthegreatlivingareusuallyalmostasunreachableasforourpersonalfriendswecannotalwaysseethem.Perhapstheyareasleeporawayonajourney.Bookfriendshaveanadvantageoverlivingfriendsyoucanenjoythemosttrulynoblesocietyintheworldwheneveryouwant.AndyoucanatanymomenttalkwithShakespeareorDumasorothergreatmeninbooks. 1Whydoestheauthorsayhelikeshisownbooksmuchmorethanborrowedones?nomorethan20words 2PleaseexplaintheunderlinedimmortalinEnglish.nomorethan1words 3Whatdoestheauthortellusinthelastparagraph?nomorethan10words 4Whatisthemainideaofthepassage?nomorethan10words 5Whatisyouropinionaboutreadingbooks?nomorethan20words
  • 已知函数fx=1≤x≤2则函数gx=2fx+fx2的值域为
  • TheChineseweightliftingteamreallydidanexcellentjob!Theyareallheroesofournation.Ithinktheyreallypraiseandawards. A.confirm B.declare C.announce D.deserve
  • 设数列{an}的各项均为正数a123a225an22n+1成等比数列bn=1+1og2an数列{bn}的前n项和为Tn. 1求数列{an}的通项公式及{bn}的前n项和 2令cn=设数列{cn}的前n项和为Sn求S2n.
  • 6分Ishouldhavebeenbornwithmyfingerspermanentlygluedtoakeyboard.SinceIwasfiveI'veknownthatIwanttobeaprofessionalwriterajournalistanovelistamodern﹣dayShakespearemaybe.InmyfreshmanyearItriedtofigureoutwhatAMidsummerNight'sDreamandTheTragedyofJuliusCaesarwereabout.Macbethinmysophomoreyearwasmucheasiertounderstand. HoweverI'mpracticallyaddictedtobookswhetherI'mreadingorwritingthem.Ican'tgoasingledaywithoutwritingsomething.IfIdo.IfeelpainsinmyfingersthatwontgoawayuntilIpickupapenandjustletmythoughtsoutIcanbeinspiredbyanythinganexpressionasongamovie.OnceIgetinspiredit'slikethewheelsturningfasterandfasterasIthinkoutonepossiblestoryafteranother. MyfamilyissowidespreadthatwheneverImeetwithacousinoranauntIonlyvagueyremember.ItellhimorherTmawriterbecauseIknowitwilldistinguishmefromalltheotherkidsinthefamilyandmakemememorable.OneaunthuggedmeandtoldmeJustdon'tforgetabouttherestofuswhenyoubecomethenextJ.K.Rowling.SmilingIrepliedDon'tworryIwon't. MaybeIjustwanttoleavemynameontheworldsinceIcan'tsingtocreateagreatworkofart﹣althoughIamaprettygoodactorbutactingdoesn'tseemliketherightpathforme﹣I'vechosenwritingtomakeanameformyself. 25.Whentheauthorwasachildhe. A.setwritingashislifegoal B.wasfamousforhiswriting C.sharedhisstorieswithothers D.consideredhimselfagreatwriter 26.Accordingtothetexttheauthorlikeswritingprobablybecause. A.heexpectstobecomewealthier B.heplanstomakefulluseofhistime C.hewantstobecomewell﹣known D.hehopestosetanexampletohispeers 27.Whatcanbethebesttitleforthetext? A.Nevergiveupyourdream B.Agoodhobbyagoodfriend CJustlikewritingfromnowon D.Amodern﹣dayShakespearemaybe.
  • PeopleintheUnitedStateshonortheirparentswithtwospecialdaysMother'sDayonthesecondSundayinMayandFather'sDayonthethirdSundayinJune. Mother'sDaywasproclaimedadayfornationalobservancebypresidentWoodrowWilsonin1915.AnnJarvisfromGraftonWestVirginiahadstartedtheideatohaveadaytohonormothers.ShewastheonewhochosethesecondSundayinMayandalsobeganthecustomofwearingacarnation. In1909Mrs.DoddfromSpokaneWashingtonthoughtoftheideaofadaytohonorfathers.ShewantedtohonorherownfatherWilliamSmart.Afterhermotherdiedhehadtheresponsibilityofraisingafamilyoffivesonsandadaughter.In1910thefirstFather'sDaywasobservedinSpokane.SenatorMargaretChaseSmithhelpedtoestablishedFather'sDayasanationalcommemorativedayin1972. Thesedaysaresetasidetoshowloveandrespectforparents.Theyraisetheirchildrenandeducatethemtoberesponsiblecitizens.Theygiveloveandcare. Thesetwospecialdaysarecelebratedinmanydifferentways.OnMother'sDaypeoplewearcarnations.Aredonesymbolizesalivingmother.Awhiteoneshowsthatthemotherisdead.Manypeopleattendreligiousservicestohonorparents.Itisalsoadaywhenpeoplewhoseparentsaredeadvisitthecemetery.Onthesedaysfamiliesgettogetherathomeaswellasinrestaurants.TheyoftenhaveoutdoorbarbecuesforFather'sDay.Thesearedaysoffunandgoodfeelingsandmemories. 1AccordingtothepassagewhichofthefollowingaboutthesecondSundayinMayisnottrue? A.Itisadaytoshowlovetomothers B.Itisadaytowearcarnations C.Itisadayforpeopletovisitthecemetery D.Itisadayformanypeopletoattendreligiousservices 2Choosetherighttimeorderofthefollowingevents. a.Thefirstfather'sDaywasobserved b.Mother'sDaywasproclaimedadayfornationalobservance c.Father'sDaybecameadayfornationalobservance d.Theideaofhonoringfatherswasboughtup A.abcd B.dabc C.bacd D.dacb 3WhoplaysthemostimportantroleinFather'sdaybecominganationalcommemorativeday? A.Mrs.Do B.MargaretChaseSmith C.AnnJarvis D.WoodrowWilson 4FromthepassageweknowintheU.S. A.oneshouldweararedcarnationifone'smotherpassaway B.onMother'sDayfamiliesoftengoouttohavebarbecues C.onFather'sDaypeopleoftenstayathometocelebratethespecialday D.Thepurposetohavethesetwospecialdaysistoshowlovetoparents 5Theauthor'spurposeofwritingthispassageisto. A.callonpeopletoloveandrespecttheirparents B.introduceMother'sDayandFather'sDay C.tellthedifferencebetweenMother'sDayandFather'sDay D.showhowimportantfathersandmothersare
  • 10分WritteninthefirstchapterofthebookPrideandPrejudiceisanextraordinarysentenceofwhichevenapersonwhohashadonlyabrieflookuponthebookwillnotfailtoreceiveadeepimpression﹣﹣﹣Itisatruthuniversallyacknowledgedthatasinglemaninpossessionofagoodfortunemustbeinwantofawife.IntermsofSherlockHolmeswe'dbetteralterthesentenceintoItisafactuniversallyacceptedbyreadersthroughouttheworldthatanexcellentbookinpossessionofourfamousdetectiveSherlockHolmesisundoubtedlyamasterpieceofalltimes.PerhapsthisisoneofthemostobviousexplanationsfortheincomparablepopularityofHolmesseriesinthefieldofdetectivestories.OverwhelmedbytherecommendationsprovidedbymyfriendsIdecidedtotakealookonthisSherlockHolmesandtheDuke'sSonoriginallypublishedbyOxfordUniversityPress. AsawholethisbookisaboutacaseconcerningtheDuke'smissingson.ArthurtheDuke'ssonwasfoundoutinacertainmorningtohavedisappearedaccompaniedwithwhichwasalsothedisappearanceoftheGermanteacher.TheschoolmasterDr.HuxtablethenturnedtothefamousdetectiveofthetimeSherlockHolmesforhelp.RealizinghowtoughandimportantthecaseisHolmesimmediatelymadeuphismindtoacceptthecaseandfollowedDr.HuxtablebacktoMackletonbytrain.HavingformedaroughideaaboutthewholematterHolmeslookedintothecaseimmediatelyandhadacarefulinvestigationoftheentireareashortlyafterthearrivalduringtheprocessofwhichhediscoveredthebodyoftheGermanteacherHeidegger.Finallyprimarilyduetohisoutstandingabilityasadetectivehemanagedtorevealthemystery. HavingoncestartedreadingthisfictionIwascompletelyabsorbedinthemysteriousstory.Atthebeginningunlikeotherdetectivestoriesthisstoryfirstdescribestheclient'sstrangebehavioratlengthtoindicatetheseverityoftheincidentinordertoattractthereaderstocontinuereadingit.Asisknowntoallvividdescriptionisessentialtodetectivestoriesasitmakesthestorymoreauthenticandattractive.ThereforetryingtopresentarealworldtohisreadershipSirArthurConanDoyleauthoroftheoriginalHolmesserieshasskillfullyarrangedtheplotsofthewholestoryfromtheperspectiveofDr.WatsonafriendofHolmes'.Inthiswayheelaborately精心describedeverysceneandcharacterinthebook.Apartfromthespecialstarttheendingofthewholestorybeingdramaticbutreasonableiscertainlyanoutstandingone.AfterallexcepttheauthorhimselfwhoknowsthattheDuke'sseeminglyordinarysecretaryisinfacttheDuke'sbastard私生子?InadditionwhoknowsthattheDukeactuallyhasalreadybeenacquaintedwiththewholethingbeforeHolmessolvesthiscomplicatedproblem?Yetsurprisingasitisthisendingseemssonaturalthatitfitsalltheplotsofthestoryperfectlywell.ClosingmyeyesIcanevenseethestoryhappeningjustlikewatchingafilm. AsfarasIamconcernednothingismoreadmirableandsurprisingintheheroSherlockHomesthanhisprofoundknowledgewhichhascertainlyassistedhimalotwhenhewasstudyingthecase.TakethebicycletyresforinstanceHolmesiscapableofrecognizing42differentvarietiesofbicycletyres.ExceptforhisillimitableknowledgeHolmesalsospecializesinarrangingthefactsinorderandthenfindingthefactleadinghimtoagreatdiscoveryoreventhetruthitself.InthiscaseaftergettingridofunrelatedfactsSherlockHomeseventuallygraspedtheclueanddiscoveredtheamazingfact. Needlesstosayasaworld﹣renownedmasterpieceSherlockHolmesandtheDuke'sSonhasattractedandisstillcharmingnumerousreadersfromallcornersoftheworldandpeoplefromallwalksoflife.TheHolmesserieshasalreadysetupastandardagainstwhichallthefollowingdetectivefictionsaremeasured.SherlockHolmesbeyondalldoubthasbeenanamefirmlyrootedinpeople'smemories.AlthoughDr.Watson'sclosingTheCaseBookofSherlockHolmesin1927wasagreatpitytothereadersthediscontinuanceoftheentireHolmesseriesmayhaveactuallyaddedtothelegendarystatureofSherlockHolmes. 66.WhydoestheauthormentionthebookPrideandPrejudice? A.Toshowhis/herimpressiononit. B.TochangeasentenceinittoevaluatetheHolmesseries. C.Toquoteasentencetodirectlyillustrateitsimpressiveness. D.Tostatethereasonwhyhe/shebeganreadingSherlockHolmesandtheDuck'sson. 67.Manyfactorscontributetotheauthor'spositiveattitudetowardthebookEXCEPTthat. A.thedetaileddescriptionofaclient'sstrangebehaviorarousesthereaders'interest. B.theplotsarewelllaidoutandallscenesandcharactersareartfullypresented. C.thebookisevenadaptedintoafilmandtheauthorreallyenjoyswatchingit. D.itsendingissosurprisingthatitmakestheauthordeeplyimpressed. 68.WhatkindofapersonisSherlockHolmesaccordingtothepassage? A.KnowledgeableB.Arbitrary.C.Mysterious.D.Courageous. 69.Howisthepassageorganized? 70.What'sthepassagemainlyabout? A.ItmainlyintroducestheplotsofthebookSherlockHolmesandtheDuck'sson. B.It'smainlyabouttheauthor'sattitudetowardsSherlockHolmes. C.It'smainlyaboutthethoughtsoftheauthorafterreadingSherlockHolmesandtheDuck'sson. D.It'smainlyacomparisonbetweenthebookPrideandPrejudiceandtheHolmesseries.
  • 已知函数fx=lnx+a∈R且a≠0gx=b﹣1x﹣xex﹣b∈R Ⅰ讨论函数fx的单调性 Ⅱ当a=1时若关于x的不等式fx+gx≤﹣2恒成立求实数b的取值范围.
  • OvertheweekendNASA'snewestMarsrovertheCuriositywhichlandedearlyonAug.6afteraneight﹣monthflightstartedsendingbacka360﹣degreehigh﹣resolution高分辨panorama全景画全景摄影ofitssurroundings. AtanewsconferenceonWednesdayJohnP.GrotzingeraprofessorofgeologyattheCalifor﹣niaInstituteofTechnologywhoservesasthemission'sprojectscientistcomparedtheviewwithaplacejustafewhours'drivefromPasadenaCalifandNASA'sJetPropulsionLaboratorytherover'sbirthplace.YouwouldreallybeforgivenforthinkingthatNASAwastryingtopullafastoneonyouhesaidandweactuallyputaroveroutintheMojaveDesertandtookapicture﹣alittleL.A.LosAngelessmogcominginthere.HeaddedToacertainextentthefirstimpressionyougetishowEarth﹣likeitseems. WheretheCuriosityactuallysitsisa96﹣mile﹣widecraternamedGaleneartheMartianequator.Tothenorththeimagesshowpartofthecraterrimthatisbelievedtohavebeenerodedbyflowingwater.Tothesouthisa3.4﹣mile﹣highpeakthatthescientistscallMountSharpwhichCuriosityismeanttoreachandtoclimb.ByinvestigatingthelayersofsedimentaryrockonMountSharpmis﹣sionscientistshopetoreconstructtheclimateandenvironmentofearlyMarsandtellwhetheritcouldhavebeenoncebeenhabitableforlife. ThephotosalsoshowmarksthatCuriosityhasmadeatthelandingsite.AsCuriositywasloweredtothesurfaceofMarsblastsfromthedescent﹣stageenginescreatedindentationsinthenearbysoilexposingthebedrockbelow.Thisexposedbedrockislikelytobeoneofthefirstareasofscientificexplorationontherover'splannedtwo﹣yearjourney. Aftertheflawlesslandingthefirstweekofoperationsoftheroveronthegroundalsoproceededalmostperfectlytooasengineersstartedcheckingouttherover'ssystemdeployedthehigh﹣gainantenna天线andraisedthemast天线杆thatholdsthecameras. Sofarnosignificanttroublehasarisen.Theweatherinstrumentexperiencedaproblemthatengineersfiguredoutadaylater.Therover'sinternaltemperaturesareslightlywarmerthanexpectedpossiblybecausethecrateriswarmerthanpredictedorbecauseNASA'scomputermodelsofCuriositywerenotquiteright.Worriesaboutoverheatingcouldputconstraintsonwhencertaininstrumentscanbeused.ButtheheatisalsoaboonreducingtheenergyCuriosityneedstowarmupitsjointsandwheelsbeforemoving. 1WhereistheroverCuriosity'sreallocation A.InthemiddleMojaveDesertnearitsbirthplaceintheUS. B.TothesouthofcraterGalethatisneartheMartianequator. C.NeartheMartianequatorwhichiserodedbyflowingwater. D.Ontopofa3.4﹣mile﹣highpeakwhichusedtobehabitable. 2Itcanbeinferredfromthepassagethattherover'sinvestigation. A.islikelytostartwiththestudyoftherocksonMars B.isdeterminedonthereconstructionoftheclimateonMars C.startedimmediatelyaftertherover'sperfectlanding D.canonlybeginafteraweek'spreparationontheground 3Whatcausedtherover'sunexpectedwarmerinternaltemperature A.Aminorproblemoftheweatherinstrument. B.ProblemsofNASA'scomputermodelsofCuriosity. C.Theimpactontheroverduringlanding. D.Overheatingofcertaininstrumentintherover. 4Whatisthemainideaofthepassage A.HowearthlikethesurfaceofMarsis. B.ThesuccesslandingofCuriosity. C.NASA'sachievementininvestigatingMars. D.HowfarthemissionofCuriosityhasgone.
  • ×120×=××120这里运用了
  • 已知实数xy满足约束条件则z=﹣2x+y的最小值为
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