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如图,已知点P为反比例函数y=﹣上一点,过点P向坐标轴引垂线,垂足分别为M,N,那么四边形MONP的面积为( )
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一反比例函数与y=x无交点且反比例函数图像上的任意一点到两坐标轴距离乘积等于5则反比例函数的解析式为
如图26111正比例函数y=x的图象与反比例函数y=k≠0在第一象限的图象交于A.点过A.点作x
如图在正方形ABCD中点A.在y轴正半轴上点B.的坐标为0﹣3反比例函数y=﹣的图象经过点C.1求点
如图点A.是反比例函数图象上一点过点A.作AB⊥y轴于点B.点C.D.在x轴上且BC∥AD四边形AB
如图在直角坐标系中矩形OABC的顶点O与坐标原点重合A.C分别在坐标轴上点B的坐标为42直线y=﹣x
如图反比例函数y=x>0的图象与一次函数y=3x的图象相交于点A.其横坐标为2.1求k的值2点B.为
.如图点P.是反比例函数y=6/x的图象上的任意一点过点P.分别作两坐标轴的垂线与坐标轴构成矩形OA
D
DP、DO,则图中阴影 部分的面积 A.1B.2
3
4
如图2已知正比例函数的图像与反比例函数的图像都经过点P.23点D.是正比例函数图像上的一点过点D.作
如图A.是反比例函数图象上的一点过点A.作AB⊥y轴于点B.点P.在x轴上△ABP的面积为4则这个反
如图已知点C.为反比例函数上的一点过点C.向坐标轴引垂线垂足分别为A.B.那么四边形AOBC的面积为
过反比例函数上的一点分别作x轴与y轴的垂线若与坐标轴围成的矩形的面积为4则反比例函数的解析式为.
如图已知点C为反比例函数y=﹣上的一点过点C向坐标轴引垂线垂足分别为AB那么四边形AOBC的面积为
如图点A.是反比例函数图象上的一点过点A.分别向x轴y轴作垂线若矩形ABOC的面积为3则这个反比例函
如图点A.是反比例函数图象上的一点过点A.分别向x轴y轴作垂线若矩形ABOC的面积为3则这个反比例函
如图已知点C为反比例函数图象上的一点过点C向坐标轴引垂线垂足为AB四边形AOBC的面积为6则反比例
如图已知点C.为反比例函数上的一点过点C.向坐标轴引垂线垂足分别为A.B.那么四边形AOBC的面积为
如图在平面直角坐标系中一次函数y1=kx+b的图象分别交x轴y轴于A.B.两点与反比例函数y2=的图
如图点A.是反比例函数y=x>0图象上一点直线y=kx+b过点A.并且与两坐标轴分别交于点B.C.过
如图直线y=x﹣1与反比例函数y=的图象交于A.B.两点与x轴交于点C.已知点A.的坐标为﹣1m.1
如图所示反比例函数y1的图象经过点A.32解答下列问题1求y1的函数关系式2过y1上任意一点B.向x
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Alwaysbelievethatsmileattheworldtheworldwillsmilebacktoyou. A.and B.or C.as D.though
InJanuary2016athree﹣episodeTVdocumentaryMastersinForbiddenCitywasbroadcastonChinaCentralTelevision.Itsoonbecamepopular﹣thefirstepisodealonehasbeenwatchednearly1milliontimessofaronthevideowebsitebilibili.com. NowthedocumentaryhasbeenmadeintoafilmandcameoutonDec162016.Itisabouthowprofessionalantiquityrestorers文物修复者intheForbiddenCityrepairancientpaintingscalligraphyclocksandbronzepieces.Itmaynotsoundexcitingbuttherestorers'patienceandtheir100percentfocusoneventhesmallestthingsisenoughtoimpresspeople. Infactmanyoftherestorersareyoungpeople.Ithasalsomadethedocumentarypopularamongtheirpeers同龄人asithasshownthempossibilityofadifferentlifestyle.AfterMastersinForbiddenCitywasbroadcastabout20000peopleappliedtoworkintheForbiddenCity.Mostofthemwerenewcollegegraduates. Thejobhasbecomepopular.Sohavetherestorers.Butwasitdifficulttobepartofadocumentary?Itwasonlysupposedtobedifficultforthedirectornotforus.Wesimplydidourjobspayingnoattentiontoanyoneelsearound.saidShiLiancangoneoftherestorerswhenaskedduringthefilm'spremiere首映inShanghai.Tomakethedocumentarytheproductionteamalsodidfiveyearsofpre﹣researchandfourmonthsofuninterrupted连续的filmingintheForbiddenCity. Indeedtheserestorerskeepthispeacefulstateofmindanddevotethemselvestodoingthesamethingtheydeeplylovedayafterday.AstheposterforthedocumentarysaysChooseacareeranddoitforalifetime. 28.WhatdoesthedocumentaryMastersinForbiddenCitymainlytalkabout? A.DetailedintroductionsofthingsintheForbiddenCity. B.HowrestorersintheForbiddenCityrepairthings. C.LifeofprofessionalantiquityrestorersintheForbiddenCity. D.DifferentkindsofworkersworkingintheForbiddenCity. 29.FromwhatShiLiancangsaidinparagraph4themostimportantqualityoftherestorersshouldbe. A.curiosity B.creativity C.imagination D.attention 30.Whatdoesthedocumentarywanttotellpeople? A.Chooseajobyouloveanddoitwell. B.Workingasanantiquityrestorerisgreat. C.Youngpeopleshouldliveadifferentlife. D.ShootingafilmintheForbiddenCityrequireshardwork.
It'snevertoooldtolearn.KarlMarxbegantolearnEnglishinhis.A.thefiftieth B.fiftieth C.fifty D.fifties
Tenyearsagomanypeoplethoughtthattheageofthephysicalbooks纸质书wascomingtoanend.Theobjectsthathadbeenthecompanions伙伴ofmillionsof16forhundredsofyearsweregoingtodieout.Soonwe'dallbereadingonlittleelectronicscreensandlaughingatthememoryofplacescalled17andbookshops. Butitseemsnottrueabouttheideaofthedeathofthephysicalbooks.AtleastintheUKasTheGuardiannotedsalesofe﹣booksarefallingwhilesalesofphysicalbooksare18.Moresurprisinglyit'syoungpeoplewhoarebuyingthemostphysicalbooks.Morethan60percentof16﹣to﹣24﹣year﹣olds19printbookstoe﹣books.Therearemanyreasonsandthemostpopularoneis:Iwouldliketo20theproduct. Booksbecomeverypersonalobjectstoreadinglovers.Itoftenstarts21theygetthebooks.Manybuyersofbooksliketowritedowntheirnamesontheinsidecoverwhenthey'veboughtone.Andwe22booksaroundwithuseverywhere. Ifthere'samarkmadeonthepagesfromcoffeeorfooditdoesn'tmatter.Thesesmall23 makeourbooksevenmorepersonal.It'sjustlikereadersofphysicalbooksmakefriendswiththem. Thefriendship24peopledevelopwithbooksisn'tjustaboutfeelings.Researchhasshownthatreadersremembermoreinformationfromreadingphysicalbooksthanelectronicones. Howeverthere'sno25thate﹣booksareheretostay.Theyaren'tsimplyaheretodaygonetomorrowthing.Butit'salsocertainthatphysicalbookswhichhavebeeninproductionsincethefifteenthcenturyareheretostaytoo. 16.A.workers B.farmers C.doctors D.readers 17.A.theatres B.labs C.libraries D.studios 18.A.rising B.raising C.rushing D.resting 19.A.pick B.prefer C.like D.want 20.A.put B.lay C.hold D.throw 21.A.while B.since C.before D.when 22.A.read B.carry C.show D.donate 23.A.accidents B.stories C.presents D.messages 24.A.who B.what C.that D.when 25.A.way B.need C.excuse D.doubt
I'mnotthekindofmotherwhonormallybrushesandstylesherdaughter'shairandmydaughterhasneverlikedsittingquietlylongenoughformetodoit. ButtodayIputachairoutsideandletmydaughterSallysitonit.Shewassittinghighwithhereyesclosedskinstillwetfromtheshowerandhermessyhairbehindherback. Irealizedshewastakingineverytouchfrommyhands.Itwasthelasttimeforaweekthatourbodieswouldconnect.TodayIwouldsendSallyawayforaweekofsummercamp.Shedidn'tasktogo.Thiswasallmyidea.She'snearly12andInoticethatI'mwithmychildnearly24hoursaday. LivingonafarmwithoutanyneighborsI'vechosenalifethatisquieterthanausualfamily's.ButinsteadofrequiringspaceawayfrommeSallyhasincreasinglydependedonme. Whatworriesmemostisthatshehasbecomeamini﹣me.Shefollowsmyhobbiesmydreamsandmyopinions.AndthatwaswhyIpulledhertothesummercampanearbywilderness荒野campcalledHawkCircle. AfterweateIdroveSallytoHawkCircle.Oncetherewegotatourofthegroundsandwereintroducedtoothercampers.Sallystoodbythegroupofchildrenholdingmyhandhorrorinhereyestryingtoworkupthecouragetojoinagameofsoccer.Ineedyouforafewmoreminutesshetoldmeholdingmyhandtightly紧紧地. Ipulledawayandwalkeduptooneofthecamp'sworkers.ExcusemeIsaidloudlyI'dliketointroduceyoutomydaughter.Maybeyoucouldhelphermeetafewofthesekids.HecameovertotalktoSallyandIkissedherandthenIdisappearedbeforesherealizedIwasgone. OnmywayhomeIfeltapieceofmysoulhadbeentakenfrommybody.Ibegantoshake.Thetears泪水camedownmyface.Ittookeverybitofmystrengthtokeepdrivingforward. WhenIarrivedhomeIcalmeddownandremindedmyselfwhyIchosethispath.IthoughttomyselfIwantSallytohaveachancetofindherselfoutofmyshadow.Idon'twanttoseeonlymyselfinmychild.Iwanttolearnwhosheis.IfIdon'tsetherfreeIfearI'llneverreallymeetherrealpersonality. After12yearsofbeingtogetherIwanttofinallymeetmydaughterforthefirsttime. 36.Sallywouldbeawayfromhermotherfor. A.aday B.aweek C.amonth D.ayear 37.FromParagraph6wecanknowSallywasvery. A.nervous B.happy C.excited D.amazed 38.Whatdidthemotherdowhenthedaughteraskedhertostayforawhile? A.Sheleftatoncewithoutsayingaword. B.Sheagreedtostaywithher. C.Shebrushedandstyledherdaughter'shair. D.Shehelpedhergethelpandthenleft. 39.What'stheChinesemeaningofthewordshadowinParagraph9? A.影子 B.保障 C.困境 D.联系 40.What'sthetruemeaningofthelastsentenceinthepassage? A.Themotherhasn'tmetherdaughterbefore. B.Themotherdoesn'tknowherdaughterverywell. C.Themotherhaslivedwithherdaughterfor12years. D.Themotherwantstoteachherdaughtertobeherself.
waitbeforeyoubuythatjacket.Let'scomparethepricesinanotherstore.
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FranceisthelargestcountryinWesternEurope.Thereareover66millionpeopleinFrance.ThecountryishometoromanticnaturalscenesliketheSeineRiverandplacesofinterestsuchastheEiffelTower.About75millionvisitorscomehereeveryyear.HerearetopthingstodoinFrance. Visitmuseums.NotriptoFranceiscompletewithoutavisittoitsmuseumsespeciallytheworld'sbest﹣knownonetheLouvreinPairs.Inthisfour﹣floorbuildingthereare35000worksofartsuchasthepaintingMonaLisabyDaVinciandthestatueVenusdeMilo.Itwilltakeyouaboutninemonthstoenjoyallthepiecesifyouwanttohaveacloselookateachofthem. Havealocalmeal.Frenchfoodisfamous.BreadisveryimportantinFrance.ThemostpopularFrenchbreadiscalledbaguette.Thelongbreadtastescrispy酥脆的andsalty.Snailsarealsoamust﹣havehere.About40000tonsofsnailsareeatenupeveryyear!Theyarealwayscookedwithbutterandgarlic. Takeabiketour.WhatisthebestwaytoenjoythebeautyoftheLoireValley?It'stakingabiketour.YoucanexperiencetherealFrenchlifewhichiscomfortablebycycling.Youcanstopandenjoythecharmingsceneryinanyplaceyoulikeandforgetallunhappythingsandtroubleforthetimebeing.Howrelaxedyouwillfeel!Youmaymeetsomelocalpeople.AbrightBonjour!alwaysbeginsanicetalk.IfyoucomehereinJuneandJulyyouarelucky.ThefamousbikeraceTourofFrancetakesplaceatthistime. 56. 57. 58. 59. 60. 61. 62. 63. 64. 65.
已知如图在△ABC中AB=AC点P是底边BC上一点且满足PA=PB⊙O是△PAB的外接圆过点P作PD∥AB交AC于点D. 1求证PD是⊙O的切线 2若BC=8tan∠ABC=求⊙O的半径.
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ThemainreasonIwasalittlenervoustogotoInnerMongoliawasthatIdidn'treallyknowwhattoexpect.HoweverIwasinterestedinthehorseridingarcheryanddeliciousfoodthatIhadheardabout. AlsomyfriendandIwouldbetravellingthereandsleepinginatraditionalMongolianyurtwithcompletestrangers.Iwasworriedaboutthisnewanddifficultexperience. Assoonaswegottothegrasslandsafterourlongfive﹣hourjourneybycarweweregreetedwithsteamingbowlsofheartyMongoliannoodles﹣justwhatweneededtogetusinthemoodtoexplore.Wetookawalkaroundthegrasslandsandweresurprised﹣notonlybytheirbeautybutalsobythestrongwindsthatblewdirtintoourhairandnearlyknockedusoffourfeet. Beforelongitwastimetogohorseriding.IwasworriedbecauseitwasthefirsttimeIhadeverriddenahorse.Ididn'tneedtoworrythough﹣wewereallbeginnersbutthehorsesmadeitveryeasyforus.Howevertheydidhaveahabitofturningaroundandgoingtheotherwayfornoreason! Intheeveningweateanothersimpledeliciousmealofroastlamb.Afterwardswehadastrangetask﹣tocollectdung粪便tomakeafire.Intheendwehadagreattimearoundthecampfirethateveninglisteningtomusicandsharingstoriesofourdaywithstrangers.Thatwasthemostexcitingpartofourtrip. Thenwewenttosleepinouryurt.Becausewewereinthegrasslandsthetemperaturedroppedsharplyatnighttoaroundzerosowefeltcoldthroughoutthenighteventhoughsixotherpeopleweresleepingwithus. ThenextdaywewokeupstillfeelingtiredandheadedbacktoHohhotcapitalofInnerMongoliaautonomousregion.Wereallylovedthenicehotelroomwesleptinthatnightandtheshowerthatwashedthedirtoutofmyhair.Howeverwedidn'tregrethavingtheadventureintheInnerMongoliangrasslands. 36.Howdidthewriterfeelbeforethetrip? A.Hefeltnervousaboutexperiencingnewthings. B.Hehadmixedfeelingsaboutthecomingtrip. C.Hecouldn'twaittogoonanadventureintotheunknown. D.Hefeltworriedabouttravellingwithcompletestrangers. 37.ThewriterexperiencedmanythingsinInnerMongoliaEXPECT. A.sleepingintheopenair B.horseriding C.makingafire D.listeningtomusicandsharingstories 38.WhichofthefollowingstatementsisTRUEaccordingtothearticle? A.Thewriterdidnotexpectthewindtobesohard. B.Roastlambwasthewriter'sfavouriteMongolianfood. C.Thewriterthoughtthatcollectingcowdungwasveryunpleasant. D.Sleepingwithothersmadethenightfeellesscoldtothewriter. 39.Whatcanwelearnaboutthewriter'shorseridingexperience? A.Thehorseshadprobablybeentrainedwell. B.Horseridingwasthemostexcitingpartofthewriter'strip. C.Thewriterwaswellpreparedforhishorseridingexperience. D.Thewriter'shorsekeptturningaroundbecausehedidn'tknowhowtocontrolit. 40.Thewriterwrotethisarticlemainlyto. A.showthatitwasthedifficultpartsthatmadehistripgreat B.describewhatInnerMongoliaisreallyliketoreaders C.tellreaderstobebraveandexploretheunknown D.shareaninterestingtravelexperience
﹣It'sverykindofLilytoprepareallthethingsfortheparty. ﹣Doyoumeanwebringanything? A.can't B.shouldn't C.needn't D.mustn't
小明在测小灯泡电功率实验中电路图如图甲所示电源电压为8V小灯泡L的额定电压为2.5V正常发光时的电阻约为10Ω可供选用的滑动变阻器R1R2和R3的最大阻值分别为5Ω20Ω50Ω.1为了保证元件安全应该选用的滑动变阻器是选填R1R2或R3.2图乙是根据实验数据绘制的U—I关系图象.由此可知小灯泡的额定功率是W.当滑动变阻器的滑片向左移动时灯丝的电阻将3小明继续向左移动滑片小灯泡发出刺眼的光然后突然熄灭电流表示数变为零那么产生此故障的原因是
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端午节快到了假如你是李华打算邀请你校的外籍老师Peter来家里过节.请根据下列提示用英语给Peter老师写一封电子邮件. 提示:May30thancientpoetQuYuanDragonBoatRace ●WhenandwhereareyougoingtocelebrateDragonBoatFestival? ●Whydoyoucelebrateit? ●Whatareyougoingtodoonthefestival? 注意: 1.文中不得出现你的真实姓名和学校名称; 2.语言通顺意思连贯条理清楚书写规范; 3.词数80左右开头已经给出不计入总词数. DearPeter Howisitgoing? DragonBoatFestivaliscoming.Iamwritingtoinviteyoutocelebrateitwithmyfamily. Yours LiHua
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Forthepastfiveyears44﹣year﹣oldRamiAdhamhasspentmuchofhistimehelpingchildreninSyria叙利亚.Hekeepssending16tothem. RamiAdhamwasborninSyriabutmovedtoFinlandwithhisfamilyin1989.WhenSyriancivilwar内战tookplacein2011hedecidedtohelpthechildreninhishometown.Inthebeginninghe17plannedonsendingtoys.Hethoughtfoodmedicineanddrinkingwaterweremore18.OncehisdaughteraskedhimtosendhertoystothechildreninSyria.WhenAdhamgavethetoystothosepoorchildrenhesawthe19ontheirfaces.Fromthenonhemadetoysonthetopofhisgiftlist. Adhamsoonbecamefamous20theFatherChristmasofSyria.HehastravelledfromFinlandtoSyria28times.Andhewon'tstop21thewarends.EverytimehegoestoSyriahecarriesaheavybagoftoysonhisbackallhisway.It'satripfullof22.Hemightgethurtorbekilledatanytimebuthenevergivesup.NowchildreninSyriaarefacingdeathandmanyotherpossiblethreats.Ithinkthetoysarereally23forthechildrenhesaid.Nomatterwhatthey24theyarealwayshappytosharethemwithothers. Adhamishavingafund﹣raisingactivityatpresent.Hewantstoraise100000dollars.Ifitis25heplanstousethemoneytobuildschoolsinSyria.TheworkofAdhamisalightamongthedarknessformanychildreninSyria. 16.A.food B.toys C.money D.medicine 17.A.never B.sometimes C.often D.always 18.A.impolite B.impatient C.important D.impossible 19.A.joy B.sadness C.anger D.fear 20.A.for B.with C.as D.to 21.A.when B.though C.after D.until 22.A.secrets B.safety C.danger D.happiness 23.A.expensive B.valuable C.useless D.hopeless 24.A.remember B.record C.receive D.remind 25.A.necessary B.interesting C.difficult D.successful
Chinaisfamousforitsfoodandhasalreadygivenmemanymemorableexperiences.TherearelotsofChineserestaurantsinAustraliabutIwastoldthattheywereverydifferentfromwhatIwouldfindinChina.SoIhadnoideawhatIwouldbeeatingwhenImovedhere. AndnowalmosteightmonthssinceIarrivedI'mstilldiscoveringthestrangeandwonderfulworldofChinesefood.AndIhaven'tseenanylocalrestaurantsservingprawncrackers虾片orsweetandsourporkwhichIenjoyedinAustralia. Perhapsmymostmemorablemealsofarwasatatraditionalhotpotrestaurant.Ihaveeatenplentyofhotpotsbeforebutthisonewasreallyreallyhot.MyfriendswatchedwithinterestasItriedduckbloodduckneckandduckintestines肠.IwouldtryanythingoncesoIwashappytogiveitago.ButIdon'tthinkI'llbetryingduckbloodorintestinesagain. WalkingthroughWangfujing'snightmarketinBeijingwasanotherinterestingexperience.Itriedscorpion蝎子onastickseaurchin海胆andmanyotherstrange﹣lookinganimals.OnethingIhavenoticedinChinaisthatpeoplelovetoeateverythingonsticks. ButthethingIlikemostaboutChinesefoodisthatyoudon'thavetosearchveryhardtofindit.TherearepeoplesellingdeliciousthingsonalmosteverycornerandthereisalwaysarestaurantnearbyinBeijing. It'salmostimpossibletogohungryinChina.Theonlyquestionis:WhatshouldItrynext? 28.WhatdoesthewordhereinParagraph1referto所指? A.China. B.Australia. C.TheUSA. D.England. 29.Thewritertriedduckbloodduckneckandduckintestinesbecause. A.hethoughttheyweredelicious B.hewantedtogiveeverythingatry C.theywerefamousinthehotpotrestaurant D.hisfriendsencouragedhimtodoso 30.Fromthepassagewecanknow. A.thewriterreallylovestoeateverythingonsticks B.thereisalwaysarestaurantoneverycornerofChina C.it'shardtofindprawncrackersorsweetandsourporkinAustralia D.thewriterseldomgetshungryinChinabecauseofsomuchdeliciousfood
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1如图1在矩形ABCD中对角线AC与BD相交于点O过点O作直线EF⊥BD且交AD于点E交BC于点F连接BEDF且BE平分∠ABD. ①求证四边形BFDE是菱形 ②直接写出∠EBF的度数. 2把1中菱形BFDE进行分离研究如图2GI分别在BFBE边上且BG=BI连接GDH为GD的中点连接FH并延长FH交ED于点J连接IJIHIFIG.试探究线段IH与FH之间满足的关系并说明理由 3把1中矩形ABCD进行特殊化探究如图3矩形ABCD满足AB=AD时点E是对角线AC上一点连接DE作EF⊥DE垂足为点E交AB于点F连接DF交AC于点G.请直接写出线段AGGEEC三者之间满足的数量关系.
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