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如图,在Rt△ABC中,∠ACB=90°,AC=6,BC=12,点D在边BC上,点E在线段AD上,EF⊥AC于点F,EG⊥EF交AB于点G.若EF=EG,则CD的长为( )
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在Rt△ABC中∠ACB=90°AC=6BC=4.将△ABC绕直角顶点C.顺时针旋转90°得到△DE
在Rt△ABC中∠ACB=90°AC=24cmAB=26cm则其直角边BC的长为
6cm
100cm
15cm
10cm
如图Rt△ABC中∠ACB=90°AC=4BC=6以斜边AB上的一点O.为圆心所作的半圆分别与AC.
2.5
1.6
1.5
1
如图在Rt△ABC中∠ACB=90°AC=6BC=4将△ABC绕直角顶点C.顺时针旋转90°得到△D
已知Rt△ABC中∠ACB=90ºAB=5两直角边ACBC的长是关于x的方程x2m+5x+6m=0的
如图Rt△ABC中∠ACB=90°AC=BC=2若把Rt△ABC绕边AB所在直线旋转一周则所得几何体
如图已知Rt△ABC中∠ACB=90°AC=6BC=4将△ABC绕直角顶点C.顺时针旋转90°得到△
如图在Rt△ABC中∠ACB=90°AC=BC=1将Rt△ABC绕A.点逆时针旋转30°后得到Rt△
如图在Rt△ABC中∠ACB=90°AC=BC=1将Rt△ABC绕A.点逆时针旋转30°后得到Rt△
如图在Rt△ABC中∠ACB=90°AC=8BC=6CD⊥AB垂足为D则tan∠BCD的值是.
如图Rt△ABC中∠ACB=90°AC=4BC=6以斜边AB上的一点O.为圆心所作的半圆分别与AC.
2.5
1.6
1.5
1
已知Rt△ABC中∠ACB=90ºAB=5两直角边ACBC的长是关于x的方程x2—m+5x+6m=0
如图4240在Rt△ABC中∠ACB=90°AC=3BC=4以点A.为圆心AC长为半径画弧交AB
如图Rt△ABC中∠ACB=90°AC=BC=2若把Rt△ABC绕边AB所在直线旋转一周则所得几何体
已知如图在Rt△ABC中∠ACB=90°CD⊥AB于点D.若AC=4BC=3则CD=________
如图在Rt△ABC中∠ACB=90°AC=BC=2将Rt△ABC绕点A.逆时针旋转30°后得到Rt△
如图在Rt△ABC中∠ACB=90°AC=3BC=4以AC为直径的圆交AB于点D.求BDCD的长.
如图1168在Rt△ABC中∠ACB=90°CD⊥ABAC=6AD=3.6则BC=_______
如图已知Rt△ABC中∠ACB=90°AC=6BC=4将△ABC绕直角顶点C.顺时针旋转90°得到△
如图在Rt△ABC中∠ACB=90°AC=6BC=8AD是∠BAC的平分线.若P.Q.分别是AD和A
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﹣What'stherecentprogressinXiong′anNewAreafirstannouncedtwoyearsago?﹣Itincreasingattentionfromforeigncompaniesgivenitshugedevelopmentpotential.A.hasbeenattracting B.hadattracted C.wouldbeattracting D.wasattracting
I'veneverseenthenightnorseenastarI'veseenneitherspringnorfallnorwinter.IwasbornattheendoftheReiningAge刹车时代justastheEarth'srotation旋转wascomingtoafinalstop.TheReininglastedfor42yearsthreeyearslongerthantheUnityGovernmenthadplanned.Mymotheroncetoldmeaboutthetimeourfamilywitnessedthelastsunset.TheSunhadeversoslowlycrepttowardthehorizonalmostasifithadstoppedmovingaltogether.Intheendittookthreedaysandthreenightstofinallyset.Naturallythatwastheendofall'days'andall'nights'.TheEasternHemisphere半球wascoveredinweaklightforalongtimethenperhapsforadozenyearsorso﹣withtheSunhidingjustbeyondthehorizon﹣itsraysreflectedbyhalfofthesky.ItwasduringthatlongsunsetthatIwasborn.Duskdidnotmeandarkness.TheNorthernHemispherewaslitupbytheEarthEngines.ThesegiantengineshadbeenraisedallacrossAsiaandNorthAmericaonlythesolidplatesbeneaththosetwocontinentscouldresistthegreatpushingforcestheyexerted.Therewereabout12000EarthEnginesbuiltanddistributedacrosstheAsianandAmericanplains.FrommyhomeIcouldseethebrightplasmaplumes等离子气柱ofseveralhundredEarthEngines.JustimagineatitanicpalaceoneaslargeastheParthenonontheAcropolis.Nowimaginecountlesstitanicpillarsrisingfromthatpalacereachingtotheheavenseachreleasingbrilliantbluish﹣whitelightlikeatitanicshiningtube.Andthenthereisyouyouareamicrobeonthepalace'sfloor.Thisonlybeginstopaintthepictureoftheworldwelivedin.Thispicturehoweverisnotyetcomplete.InordertosurvivethemeltingtemperatureoftheexpandingsunwehavetopushtheEarthawayfromit.FirsttheEarthmustbestoppedfromrotating.Onlytheforcesactingtangentially正切地totheEarth'srotationcouldslowitsotheEarthEngineshadtobebuilttoaspecificangle.Thosegiganticpillarsoflightwereleaningtothatangle.Nowimaginewhatthatmeantforourpalacewithitspillarsallleaningonthepointoffallingdown!ManywhocamefromtheSouthernHemispherewentmadwhensuddenlyseeingthisawesomeview.WorsethantheviewwastheburningheatreleasedbytheEarthEngines.Outdoorsthetemperaturewasstuckataround160to180degreesforcingustowearspecialsuitsjusttoleavethehouse.Theextremelyhightemperaturesoftenbroughtpouringrains.ItwasalwaysaterrifyingscenewhenthebeamofanEarthEnginecutthroughdarkclouds.Thecloudsscatteredthebrilliantbluish﹣whitelightofthebeameruptingitintoendlessrainbowlightthatcoveredtheentireskylikewhite﹣hotmagma岩浆.TomygenerationbornintheNorthernHemisphereallofthiswasperfectlynormalandnaturaljustliketheSunstarsandMoonhadbeentogenerationsbeforetheReiningAge.WecalledtheentirehistoryofthehumanracethathadcomebeforeusthePre﹣SolarAgewhatafascinatingandgoldenerathathadtrulybeen!TheReiningAgelefttheearthwithahorrifyingresult.TheseatidesquickenedbytheEarthEngineshadswallowedtwooutofeverythreecitiesintheNorthernHemispherethentheglobalincreaseintemperaturesmeltedthepolaricecapresultinginfloodsthatspreadtotheSouthernHemisphere.Thirtyyearsearliermygrandfatherhadwitnessedgiant300﹣footwavesthathadengulfedShanghai.Evennowhecouldnevertellusaboutitwithouthisgazeslippingintoathousand﹣milestare.Ourplanethadalreadychangedbeyondrecognitionbeforeitevensetoutonitsjourney.Whoknewwhathardshipswerewaitingforusonourlongtravelsthroughouterspace?1Whathappenedwhentheauthorwasborn?A.Theearthhadstoppedturningforforty﹣twoyears.B.Thesunwasmakingitslastfalltowardsthehorizon.C.AlltheEarthEngineshadnotbeenfinished.D.Hisfamilyweresufferingfromthesummerhotness.2WhichofthefollowingabouttheEarthEnginesisright?A.TheywerebuiltinAsiaandNorthAmericaduetotheirhugenumberandweight.B.Theirlightandheatprovidednecessaryenergyforpeopletosurvive.C.Theywereallbuilttopointstraightupwardtotheskytostoptheearthrotating.D.Theirexistencebroughtbothopportunitiesandinconveniencetopeopleontheearth.3Whatcanweinferfromthelastthreeparagraphs?A.PeoplebornintheSouthernHemispherecouldenjoyfourdifferentseasons.B.TheauthormissedhisPre﹣SolarAgelifestyleverymuch.C.GrandfatherwouldneverforgetthesceneofShanghaibeingswallowed.D.Theauthorwasdiscouragedbutoptimisticaboutthefutureoftheearth.4Inthisexcerpt节选wecanclearlyseethattheauthorisgoodat.A.describingmentalactivitiesB.visualizingvividscenesC.doingexperimentalanalysisD.expressingpersonalbelief5Thisexcerptisapartof.A.adocumentarynovelB.anacademicessayC.ascientificresearchreportD.asciencefiction6Whatisthebesttitleofthischapter?A.TheLastSunset.B.TheEarthEngines.C.TheReiningAge.D.ThePost﹣SolarLife.
At15IhadstartedabandwiththreematesI'dmetatthelocalrehearsal排练rooms.WeplayedourfirstperformanceatapubinBolton.Wewere1butthecrowddidn'tseemtomindandafterafewmorelocalconcertswerecordedsomesongsandwestartedto2.Wesentouthundredsofdemo样本tapesin3ofourfavouritebandtheManics.AfterfinishingmyhighschoolwedrovetoLondontoplayattheDublinCastle.Onlyfivepeople4.Butwepersevered坚持andslowlythingsbeganto5.Twoyearsafterourfirstperformancewe6arecorddeal.We7endlesslyforthenexttwoyearsandbuiltupasmallbut8following.Attheendof2002theManics9ustoplaywiththem.MyteenagedreamshadcometruethebandIlookeduptoseemedto10ofus.We11performinginNewYorkandto5000peopleattheFujiRockfestivalinJapan.There'snogreater12thanthemomentyousteponstage.Thelightsdarkenthecrowdswells波浪起伏andthey13inapplauseasyoufinish.Ouralbumwas14in2003.Unfortunatelynooneboughtthething.15Ithinkthatwasaboutright.16I'mextremelyproudofthemusicweproducedwewereridingawaveofhype天花乱坠的宣传wecould17liveupto.Ourrecordcompanyquietly18usandasquicklyasithadstartedmytimeinabandwasover.We19peacefullyonthedayitwasreleased.Weevenhada'lastsupper'tomarkourdemise停业.Thebandhad20everything.MyoldschoolwelcomedmebackandIworkedharderandwasfinallyadmittedtoOxfordUniversityatthegrandoldageof21.1.A.troublesome B.thrilled C.hopeful D.terrible2.A.hesitate B.succeed C.dream D.qualify3.A.imitation B.favour C.charge D.celebration4.A.droppedout B.turnedup C.divedin D.passedby5.A.catchon B.takeoff C.pickup D.getround6.A.declined B.lost C.expected D.signed7.A.practiced B.studied C.toured D.waited8.A.separated B.devoted C.concerned D.relieved9.A.persuaded B.required C.reminded D.invited10.A.approve B.tire C.hear D.think11.A.gaveup B.endedup C.putoff D.insistedon12.A.risk B.pain C.loss D.rush13.A.erupt B.gather C.squeeze D.withdraw14.A.preserved B.released C.displayed D.evaluated15.A.Lookingforward B.Lookingdown C.Lookingback D.Lookingup16.A.Though B.Since C.Unless D.Before17.A.actually B.somehow C.always D.never18.A.betrayed B.dropped C.impressed D.sponsored19.A.splitup B.hungaround C.movedaway D.brokedown20.A.experienced B.disturbed C.changed D.replaced
FacialrecognitiontechnologyisworkingwellattouristattractionsaroundChinathetimepeoplespendstandinginlinesatentriesorsecuritycheck. A.toreduce B.reduced C.havingreduced D.reducing
OneofthedeepestteachingsofConfuciusmayhavevaluedpersonalexemplificationaboveclearlyexpressedrulesofbehavior.Hismoralteachingsemphasizedself﹣cultivation培养imitationofmoralexemplarsandtheattainmentofskilledjudgmentratherthanknowledgeofrules.Histeachingsrarelyrelyonreasonedargumentandmoralidealsandmethodsareconveyedindirectly.Histeachingsrequireexaminationandcontexttobeunderstood.Agoodexampleisfoundinthisfamousanecdote廄焚.子退朝曰'傷人乎?'不問馬.WhenthestableswereburntdownonreturningfromcourtConfuciussaid'Wasanyonehurt?'Hedidnotaskaboutthehorses.X.11tr.Waley10﹣13tr.LeggeorX﹣17tr.LauBynotaskingaboutthehorsesConfuciusdemonstratesthatthesage圣人valueshumanbeingsoverpropertybutnotdirectlyreadersareledtoreflectonwhethertheirresponsewouldfollowConfucius'sandtopursueself﹣improvementifitwouldnothave.Confuciusasanexemplarofhumanexcellenceservesnotasanall﹣powerfuldeity神人orauniversallytruesetofabstractprinciplesbutratherthebestmodelforothers.ForthesereasonsaccordingtomanycommentatorsConfucius'steachingsmaybeconsideredaChineseexampleofhumanism.Oneofhisteachingswasavariant变体oftheGoldenRulesometimescalledthe'SilverRule'owingtoitsnegativeform己所不欲勿施於人.'Whatyoudonotwishforyourselfdonotdotoothers.'子貢問曰'有一言而可以終身行之者乎?'子曰‘‘其恕乎!己所不欲勿施於人.'ZiGong[adisciple]asked'Isthereanyonewordthatcouldguideapersonthroughoutlife?'TheMasterreplied'Howabout‘reciprocity'!Neverimposeonotherswhatyouwouldnotchooseforyourself.'AnalectsXV.24tr.DavidHintonOftenoverlookedinConfucianmoralsarethevirtuestotheselfsincerityandthecultivationofknowledge.Virtuousactiontowardsothersbeginswithvirtuousandsincerethoughtwhichbeginswithknowledge.Avirtuousnaturewithoutknowledgeislikelytobeinfluencedbycorruptionandvirtuousactionwithoutsincerityisnottruerighteousness正义.Cultivatingknowledgeandsincerityisalsoimportantforone'sownsakethesuperiorpersonloveslearningforthesakeoflearningandrighteousnessforthesakeofrighteousness.1ThehorseexampleinthefirstparagraphistoshowthatConfucius.A.paidmuchattentiontomoralteachingsB.meantotherstounderstandhisteachingsbyself﹣reflectionC.directlydemonstratedhisemphasisonhumanbeingsD.neverinhumanlyforcedotherstodowhathedidn'tliketodo2Whatdoesthelastparagraphmainlytalkabout?A.Theimportanceofthevirtuestotheself.B.Howtodefinethevirtuestotheself.C.Therelationshipbetweensincerityandknowledge.D.Whythevirtuesoftheselfareoftenoverlooked.3WhichofthefollowingprinciplesofConfuciusismentionedinthispassage?A.Exampleisbetterthanteaching.B.Hewhopracticesvirtueswillhaveneighborsandfriends.C.Keepwhatyousayandcarryoutwhatyoudo.D.Bynaturemenarenearlyalikebypracticetheygettobewildapart.
Theinfrastructureprojecthasconsumedsomuchmoneythatwecan'tfindanyfinancialsupportandhaveto. A.pullout B.pullthrough C.catchup D.catchon
请根据你对以下两幅图的理解以ManyHandsMakeLightWork.为题用英语写一篇作文. 参考词汇 wind﹣blowntrees被风刮倒的树liftup扶起来 你的作文应包括以下内容 1.简要描述两幅图的内容 2.概述你对两幅图中不同做法的理解 3.举例说明两幅图对你的启示.注意 1.短文应该包括以上所提供的主要信息可适当发挥 2.词数150左右 3.作文中不得提及有关考生个人身份的任何信息如校名人名等. ManyHandsMakeLightWork
Actorsshouldbegoodobserverswatchingpeople'sbodylanguageandspeakingstyleandthisintotheirownabilitiestoprogressinacting. A.transferring B.transforming C.transporting D.transmitting
manyChineseholidaysaredirectedtowardsservicesrememberingancestorstheChingMingFestivalisbeyonddoubtthelargest. A.Unless B.Since C.Once D.While
Theaccidentwhichleft15peopleonboarddeadifboththeangryfemalepassengerandthebusdriverhadkeptcalm. A.shouldhaveavoided B.shouldbeavoided C.couldhaveavoided D.couldhavebeenavoided
﹣MumlittleRaybrokehistoysagain!﹣Itdoesn'tmatter.Youseeaccidentshappen.A.shall B.should C.must D.will
foryearsofhardtrainingshewouldnotbestandingonthestagereceivinghugecheersandapplause. A.Itwerenot B.Ithadnotbeen C.Wereitnot D.Haditnotbeen
Ifyouarenotreadingthisonascreenthenyouholdinyourhandsoneofhumanity'sworld﹣changinginventions.Yetthatpowerhasnotbeenmatchedbyfamepaperdelightsinself﹣modestypointingyoutothewordsonitssurfaceandsoactingonlyasastageforideasandargumentsthathavechangedhistory.Withoutthatstagethewrittenandprintedwordwouldhaveattractedonlyasmallaudience.Allthealternativestopapercommonlyusedthroughoutourpre﹣digitalhistoryhavebeentooraretooheavytooexpensiveortooinconvenienttodeliverwordstoawidenumberofpeopleletaloneamassreadershipPaperhasenabledwriterstoreachunprecedented前所未有numbersthroughouthistory.AmongthemweretheBuddhistmissionarytranslatorsfromSouthandCentralAsiawhobroughttheirreligiontoChinaalmosttwothousandyearsago.ThepaperagehasitsoutstandingpersonalitiesLevNikolayevichTolstoyandJohannWolfgangvonGoethewhosecollectedworkswhencombinedfillmorethan200volumes.Formanyofusithasonlybeentheriseofdigitalmediathathasfinallyopenedoureyestopapersstrikingexistenceeverywhere.Ofcoursepaperhasfoundthousandsofrolesforitselfwritingaside.Yourbedsidelampglowsthroughapapercoverandthecupsintheofficecoffeemachinearemadefrompaper.Itcanbeascommonandpracticalasabusticketoritcanbetreasuredandexpensiveasthecarrieroftheworldsbest﹣lovedpainting.Itisclearthatmanypredictionsofpaper'sextinctionhavebeenpremature﹣andgreatlyoverstated.Muchofthe400milliontonsofpaperproducedannuallyisabsolutelynecessarytoourwayoflife.Thebiggerquestionofcourseconcernstheonerolepaperhashadthathasbeentransformativefortheworld.namelyasthecarrierofwrittenorprintedtext.Alreadyitisleavingmuchofthedifficultworkofwordstodigitalmediaandmanyofitscenturies﹣oldroleshavealreadybeenlargelytransferredtothescreen.Thereisalsoasenseinwhichpaperhasitselfbecomeasubjectratherthansimplyamedium.Thisbegantobecomeclearinartseveraldecadesago.aspaperbecamenotsimplythebackdrop背景forartbutinafewcasesthestuffoftheartitself.Thisdoesn'tmeanthatpapersusesasavehicleforwordswillendbutitdoessignalaslowingdown.Morethanthatitsignalsthatpaper'sgreatestvirtuesarenolongergoodenough.Thosevirtuesenabledunprecedentedperiodsofculturalexpansiveness.justastheyencouragedknowledgebeliefsandideastomovefurtherdownthesocio﹣cconomicladder.Yetsuchtransformativequalitiesaresharedbypaper'sdigitalopponent对手andpapercannolongercompeteonspeedofdeliveryscaleofinformationimmediatelyavailableoreaseofaccess.Paper'shistoricdynamism活力hasreceiveditsfirstgreatchallengeandinmanyaspectsitappearstobelosingNostalgia怀旧simplydismissespapertoamuseumpiece.Buttherearereasonstothinkthatthedynamismthatpaperhasexhibitedoversome20centurieswillnotbetransferredtotallytodigitalmedia.Thereareafewpracticalreasons.Electricpowerisalwaysneededfordigitalmediaofcourse.Moreimportantlyanythingonlinecanpotentiallybehackedinto.Yourownreadingchoicescanbeviewedfromtheothersideoftheworld.Evenwhatyouwritecanbeviewedandchangedordeleted.Butitistheownershipofknowledgethatmattersmost.AsAmazonrecentlyremindedakindlereaderwhohadlostthetextofabookhewasreading.youdonot'own'yourbooksonKindleasyouownaphysicalbook.Yousimplyhavetherighttoaccessthem.Thedigitalrevolutioncertainlyprovidesunprecedentedaccesstoknowledge.Butitisaccessonly.Textthatyoucanholdshelveandownduetopaperwillalwayshaveamagicallitsown.1Whydoespapernothavewell﹣deservedfame?A.Muchinformationisavailableonascreen.B.Ittakesgreatdelightinbeingmodest.C.Onlyasmallcrowdenjoysthebenefitsofit.D.Italwaysguidesreaderstofocusmoreonitself.2TheunderlinedpartinParagraph4impliesthatthedigitalmedia.A.ignorestheexistenceofpaperB.promotesthewideuseofpaperC.replacesthefunctionsofpaperD.helpsusrealizetherolesofpaper3Onereasonwhypaperwon'tcometoanendisthat.A.itisbeingmass﹣producedB.itismorethanamediumC.ithasacenturies﹣oldroleD.itisawell﹣knowninvention4What'sthepurposeofmentioningthebestvirtuesofpaperinParagraph6?A.Toshowitsfastdevelopment.B.Toproveitsunchangedstrength.C.Toindicateitslossofcompetitiveness.D.Tobringbackitspastbrilliance.5Whatisthebiggestproblemthedigitalmediaface?A.Itdependsonelectricpower.B.Personalprivacyiseasytoleak.C.Usersonlyhavetherighttouse.D.Thejoyofreadingishardtofeel.6Whatisthebesttitleforthepassage?A.TheHistoryofPaperB.ThePowerofPaperC.TheDevelopmentofPaperD.TheApplicationofPaper
请阅读下面图画和文字并按照要求用英语写一篇150词左右的文章. 【写作内容】 1.上面图文信息中的Mati的情况实际上反映了一种社会现象请以约30词阐述这种现象的主要内容 2.你认为人们该以什么样的态度来对待这种社会现象?是将它当做一种社会问题加以干涉还是当做一种正常现象给予理解?请给出理由论证你的观点至少三点 【写作要求】 1.写作过程中不能直接引用原文语句 2.作文中不能出现真实姓名和学校名称 3.不必写标题 【评分标准】 内容完整语言规范语篇连贯词数适当.
请阅读下面短文并按照要求用英语写一篇150词左右的文章.TheUniversityofCambridgeconfirmedthatitwouldacceptstudentsbasedonGaokaotestresultsinapostontheUniversity'sofficialWeiboaccountonMarch25.TheGaokaoChina'sextremelydifficultuniversityentranceexamisnowacceptedbyanumberofoverseasuniversitiesincludingtheUniversityofNewHampshirewhichlastyearbecamethefirststateuniversityintheUStoacceptGaokaoscoresfornewadmissionstheUniversityofWesternAustraliaandtheUniversityofBritishColumbiainCanada.PreviouslyChinesestudentswouldhavetotakestandardizedcollegeadmissiontestssuchastheSATandACTusedinUSschools.TheGaokaoisregardedassuitablepreparationforCambridge.TheGaokaoscoresofsuccessfulapplicantswillvaryfromprovincetoprovinceandyeartoyear.Asaguidelinesuccessfulapplicantswillusuallyhavescoresinthetop0.1%ofthosetakingtheGaokaointheirprovince.InadditiontothetotalscoreCambridgeCollegeswillpaycloseattentiontoindividualsubjectscoresandscoresintheSeniorHighSchoolExaminationsXueyeShuipingKaoshipreviouslytheHuikao.TheXueyeShuipingKaoshialonearenotregardedassuitablepreparationforCambridge.【写作内容】1.用约30词写出上文概要2.你对高考被国外著名大学认可的看法并至少从两个方面解释你的观点3.谈谈你对如何提高高考国际认可度的建议不少于2条.【写作要求】1.写作过程中不能直接引用原文语句2.作文中不能出现真实姓名和学校名称3.不必写标题.【评分标准】内容完整语言规范语篇连贯词数适当.
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