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如图，已知抛物线y=ax2+bx+3与x轴交于A、B两点，过点A的直线l与抛物线交于点C，其中A点的坐标是（1，0），C点坐标是（4，3）． （1）求抛物线的解析式； （2）在（1）中抛物线的对...
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如图已知抛物线y=x2+bx+c的顶点坐标为M0﹣1与x轴交于A.B两点.1求抛物线的解析式2判断△
已知抛物线与x交于A﹣10B30两点与y轴交于点C03求抛物线的解析式.
如图已知抛物线y＝ax2＋bx＋ca≠0的对称轴为直线x＝－1且抛物线经过A.10C.03两点与x轴
如图抛物线y=x2+bx+c过点A.﹣4﹣3与y轴交于点B.对称轴是x=﹣3请解答下列问题1求抛物线
已知抛物线y=－x2＋bx＋c与x轴交于A.－10B.－30两点与y轴交于点C.Ⅰ求抛物线的解析式;
已知抛物线y=ax2+bx+ca≠0与x轴交于A.B.两点若点A.的坐标为﹣20抛物线的对称轴为直线
如图在直角坐标系xOy中抛物线y＝x2＋bx－3与x轴交于A.B.两点与y轴交于点C.顶点为M.已知
已知抛物线y=x2+bx+c与y轴交于点A与x轴的正半轴交于BC两点且BC=2S△ABC=3那么b=
已知抛物线py=ax2+bx+c的顶点为C.与x轴相交于A.B.两点点A.在点B.左侧点C.关于x轴
抛物线y=x2+bx+c过点2﹣2和﹣110与x轴交于A.B.两点与y轴交于C.点.1求抛物线的解析
如图已知抛物线的顶点为A14抛物线与y轴交于点B03与x轴交于C.D两点点P是x轴上的一个动点.1求
已知抛物线y=x2﹣2x+c与x轴交于A.B两点与y轴交于C点抛物线的顶点为D点点A的坐标为﹣10.
如图已知抛物线y＝ax2＋bx＋ca≠0的对称轴为x＝1且抛物线经过A.—10C.0—3两点与x轴交
已知抛物线y=ax2+bx+ca≠0与x轴交于A.B.两点.若点A.的坐标为-20抛物线的对称轴为直
已知抛物线Y=-2/3X2+bx+c与x轴交于不同的两点Ax10和Bx20与y轴交于点C且x1x2是
如图抛物线y=x2+bx+c与y轴交于点A.02对称轴为直线x=﹣2平行于x轴的直线与抛物线交于B.
若抛物线y＝x2＋bx＋c与y轴交于点A.与x轴正半轴交于B.C.两点且BC＝2S.△ABC＝3则b
如图已知抛物线的顶点为A14抛物线与y轴交于点B03与x轴交于CD两点.点P是x轴上的一个动点.1求
已知抛物线py=ax2+bx+c的顶点为C.与x轴相交于A.B.两点点A.在点B.左侧点C.关于x轴
已知抛物线y=﹣x2+2x+3与x轴交于AB两点点A在点B的左侧.1求AB两点的坐标和此抛物线的对称
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折线统计图不能反映各种数量的多少．判断题
Forthefirsttimein94yearsthePalaceMuseumhasextendeditsopeninghoursallowingthepublictocelebratetheLanternFestivalatnightintheancientpalace. About3000luckyvisitorsreceivedfreeticketsfromthegovernmentamong1wasZhangZhifua77﹣year﹣oldpublicsecurityvolunteer.It'samarkofgratitudeforhervolunteerwork.Itis21trueanhonortobegrantedthisspecialprivilegeZhangsaid. Toguaranteethe3safeofthepalacefestivalorganizers4planthisyear'sLanternFestivaleventusedLEDlightsratherthantraditionalpaperlanternsandredcandles.It'safascinatingeventforvisitorstoabsorb5theyinthefestiveatmosphereinthemuseum.DiscussionofthePalaceMuseum'snewlooklitupsocialmediafollowingTuesday'sdisplay. SincehebecamedirectorofthePalaceMuseumShanJixiang6bringmanychangestotheworld's7largeimperialcomplex建筑群.Onceinaspeechthe64﹣year﹣olddirectorsharedhisideaabouthowtomaketraditional8treasurecomealiveagain.Hesaid9matterstoamuseumisnothowmanyvisitorstheyhavebuthowclosetheyare10people'sdailylives.
一种小汽车原价12万元现价9万元降低了%
假定英语课上老师要求同桌之间交换修改作文请你修改你同桌写的以下作文.文中共有10处语言错误每句中最多有两处.错误仅涉及一个单词的增加删除或修改. 增加:在缺词处加一个漏字符号∧并在其下面写出该加的词. 删除:把多余的词用﹨划掉. 修改:在错的词下划一横线并在该词下面写出修改后的词. 注意:1.每处错误及其修改均仅限一词; 2.只允许修改10处多者从第11处起不计分. TwomonthsagomymotherandIwerewalkinghomefromshoppingwhilewenoticedasmalldoglyingsillonthemiddleoftheroad.Howdangeritwas!Wegotcloselytohimandfoundthathewasbadlyinjured.Sawthepoordogwedecidedtohelphim.Immediatelywecalledataxiandsendhimtoananimalhospitalwherehewasexaminedandreceivedtreatment.Afterstayinginhospitalforfewdayshebecamegoodenoughtowalk.Thenwetookhimhomeandlookedafterhimcarefullyuntilhewasfullyrecovered.Nowheisalreadyanimportantmemberofourfamilyandbringsourselvesalotofhappiness.
25%==20＝填小数
假如你是李华你的笔友Tom正在学汉语发来邮件询问如何提高汉语水平请你根据提示用英语给Tom回复. 提示:1.关注语音语调四个声调; 2.背诵经典; 3.写日记; 4.其他. 注意:1.词数100左右; 2.可以适当增加细节以使行文连贯. 提示词:语调intonation声调tone经典作品classics DearTom Sincerely LiHua
深圳市某风景点近几年来游客人数统计图．2000年的游客人数比1998年增长%2002年的游客人数比2000年增长%．
解方程
You'11finditamazingtosupportpeoplewhenyougoouttoeat!Justlookforrestaurantsthathirepeoplewithdisabilitieswhicharemakingtheworldamoreinclusiveplace.Eachbakerycaféandrestaurantbelowhasawonderfulandheartwarmingstory. HugsCare:McKinneyTexas RuthThompsononcehadavisiontocreateanonprofitcaféthatwouldberunandoperatedprimarilybyadultswithspecialneeds.WithhardworkastrongpassionandanamazingteamHugsCaféopeneditsdoorsin2015.HugsCaféisnowsomuchmorethanajobtoour23teammateswhichisenhancingthemeaningfullivesofadultswithspecialneedsthroughtrainingandemploymentatHugsCafé.Thompsonsays. Vinny&Bay'sCoffeeandEatery:PanamaCityFlorida AlotofpeopleplantheirvacationsaroundcomingtothiscoffeeshopsayscaféownerKaraRigby.Vinny&Bay'sCoffeeandEaterywasestablishedsothatBayleehadaplacetoworkRigbyadds.BayleeisRigby'sdaughter'sfriendwhohasadisability.Thecoffeeshop'sgoalbecometrainingforindividualslikeBaylee.SomeworkershaveevenstartedatVinny&Bay'sandwereabletoworkinaregularworkplace.Rigbysaysthatheremployeeshaveawholelotmoreabilitiesthandisabilities.Theyloveunconditionallyanditchangesthewholeenvironmentandbusiness.Rigbybelievesthatincorporatingevenjustoneortwodisabledindividualsintoabusinesscanchangethewholeatmosphere﹣forthebetter! SugarPlumBakery:VirginiaBeachVirginia HeadtoSugarPlumBakerytofindadeliciouscarrotcakeandseepeoplewithdisabilitiessuccessfullyworkingalongsidenon﹣disabledworkers.SugarPlumhasbeenpromotingtheintegrationofadultswithdevelopmentaldisabilitiesbyprovidingtrainingandemploymentopportunitiestomorethan1000peoplewithdisabilitiessince1987.Whetherthey'rescoopingcookiesormakingcupcakesSugarPlum'sdisabledemployeesarethebackboneofthebakery. 1Whatdothethreerestaurantshaveincommon? A.Theyareestablishedbyadultswithspecialneeds. B.Theyaresupportedbycharitiesorlocalgovernment. C.Theyprovidetrainingandemploymenttodisabledindividuals. D.Theemployersandemployeesthereareallindividualswithdisabilities. 2Itcanbeknownfromthepassagethat. A.HugsCafésetupin1987nowhas23teamates B.RigbyfoundedhercoffeeshoptohelpBayleeherdaughter C.Disabledindividualsarenotabletoworkinaregularworkplace D.SugarP1umBakeryhiresbothnormalpeopleandpeoplewithdisabilities 3Whatdoestheunderlinedsentenceinthelastparagraphsuggest? A.Disabledworkerstherearethemostimportantpart. B.Thebakerygetssupportandstrengthfrombackbone. C.Thecustomersarealwaysbackingthedisabledworkers. D.Theemployeeshaveawholelotmoreabilitiesthandisabilities.
在绘制一幅条形统计图时如果用2厘米长的直条表示80千克那么5厘米的直条就表示千克的重量．
最简单整数比就是比的前项和后项只有公约数1．判断题
解方程 2x+3-51-x=3x-1
TheThingsThatKeepUsFromSucceeding Wehavealwaysbeentoldnottofearfailurebecauseitisessentialtosuccess.Soweshouldembracefailureoratleastthepossibilityoffailure.1.Ifyou'renotreachingthekindofsuccessyouimagineoneormoreofthefollowingthingsmightwellbetrueofyoutoo. NO.1:Youdon'thaveagoal.Atotoftimewefindourselvesstrugglingthroughaday﹣to﹣dayroutinethatisn'tgettingusanywherebecausewedon'tknowwherewewanttogo.Sometimeswehadgoalswhenwesetourselvesonaparticularpathbutwe'vechangedalongthewayandthosegoalsarenolongerthatimportant.2figuringoutwhatyourgoalsareisimportant. NO.2:Youdon'thaveavision.Settinggoalsisimportantbutisn'tenoughtodriveyoutothefinishline;it'simportanttootobeabletoimagineyourselfastheachieverofyourgoals.Ifgoalsaretheendresultofajourneyyourvisionisthefueltogetyouthere. NO.3:Youdon'thaveaplan.Ifgoalsareyourdestinationandavisionisyourfuelyourplanisthemaptogetyouthere.3.Theworldisfullofpeoplewithgoalstheyhaveneveraccomplishedbecausetheydidn'thaveaplan﹣don'tbeoneofthem. NO.4:You'retoocertainornotcertainenough.Toomuchcertaintycreatesinflexibility.Ifyou'resurethatyourplaniscorrectandrefusetoacceptthepossibilityoferroryoumaywellfindyourselfstuckwhenanunexpectedchangecomesabout.Howeverstrongyourplanandhoweversureyouareofyourgoalsmakeroomforperiodicreassessment. 4.Ifyourefusetotakeastepbecauseyouaren'tpositivethatitwillmoveyoutowardssuccessyouwon'tmakeanybetterprogressthanifyouhadnogoalsatall.Keepyoureyesopenandbewillingtochangebuthavefaithinyourselftoo. NO.5:5.Oftenwecloseourselvesofffromotherpeoplenotbecausewe'reafraidthattheywillinfluenceusbutthatwewillinfluencethem.Weareafraidthatourbrilliantideaswillbetakenupbysomeoneelseandnolongerbesolelyours.Soweavoidsharingourpassionsandspendourenergyjealouslyguardingoursecretratherthansimplymovingforward.Intheendweturnourpassionsintoburdensthataredifficulttocarryinsteadofajoy. A.Whateverthecase B.Whateverthecause C.Youworryaboutbeingcopied D.Youdon'tlearnfromyourmistakes E.Atthesametimetoolittlecertaintywillfailyou F.Howeverfearisn'ttheonlythingthatkeepsusfromsucceeding G.Withoutityouhavenoideawhatimmediatestepstotaketoachieveyourgoals
Whataredreamsfor?Ahandfuloftheorieshavethemostinfluence.SigmundFreudfamouslyclaimedthattheyrevealhiddentruthsandwishes.DespitebeinglargelyunsupportedbyevidenceresearchersfoundthatstudentsintheU.S.SouthKoreaandIndiaweremuchmorelikelytoaccepttheview.Inthesamestudyrespondentssaidthatdreamingaboutaplanecrashwouldcausethemmoreanxietythananofficialwarningaboutaterroristattack.Morerecentresearchsuggeststhattheymayhelpusprocessintenseemotionsorperhapssortthroughandstrengthenmemoriesorrehearseresponsestothreateningsituations. Evenifdreamscan'tforetellthefuturetheyseemtoexposeoursharedfascinations.ThemajorityofdreamsoccurduringREMsleepcyclesofwhichtheaveragepersonhasfourorfiveanight.AstudyofCanadianuniversitystudentsfoundthemostcommondreamtopicstobeschoolfallingbeingchasedandarrivingtoolateforsomething. Forallthecommonalitiesdreamsexhibittheyvaryacrosstimepeoplewhogrewupwatchingblack﹣and﹣whiteTVaremorelikelytodreaminblackandwhite﹣andculture.A1958studydeterminedthatcomparedwithJapanesepeopleAmericansdreamedmoreaboutbeinglockeduplosingalovedonefindingmoney.Japanesepeopleweremorelikelytodreamaboutschooltryingrepeatedlytodosomethingbeingparalyzedwithfearorwildviolentbeasts. Ifhumandreamssoundboringbearinmindthatevennegativeonescanhavepositiveeffects.InastudyofstudentstakingaFrenchmedical﹣schoolentranceexam60percentofthedreamstheyhadbeforehandinvolvedaproblemwiththeexamsuchasbeinglateorleavingananswerblank.Butthosewhoreporteddreamsabouttheexamevenbadonesdidbetteronitthanthosewhodidn't. 1WhatdoyouknowaboutFreud'sviewondreaming? A.Itwillcausepeoplemoreanxiety. B.It'salreadybeenprovedbyevidence. C.It'spopularwithsomeAmericanandAsianstudents. D.Itcanrevealthehiddentruthandpredictthefuture. 2Accordingtorecentresearchdreamsmay. A.makeemotionsintense B.helpprepareforspecialsituations C.reduceourmemories D.helpustakenotes 3Accordingtoparagraphs2and3whichofthefollowingistrue? A.Theaveragepersonhasfourorfivesleepcyclesanight. B.Canadianstudentsaren'tworriedaboutbeinglateforschoo1. C.AmericansusuallysharethesamedreamtopicswithJapanese. D.FilmsaboutwildbeastsmaybewidelyshowninAmericain1958. 4Ifyoudreamthatyoufailedtheexam. A.yourdreamwillcometrue B.you'llbedepressedwithfear C.youaresupposedtotakeitseriously D.itshowsthatyoucarealotabouttheexam
化简比．1
一班和二班人数比54已知二班48人一班和二班一共有多少人
求比值．千米500米
假定你是李华你的美国朋友Tom听说在中国通过扫描二维码scanQRcode就可以轻松实现移动支付mobilepayment感到不可思议.请你写封邮件告知移动支付在中国的相关情况.内容包括: 1.在中国最流行提供了便利. 2.快捷且强大的功能:如买早餐买地铁票. 3.改变我们的生活引领世界. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯. DearTom Yourssincerely LiHua
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ForKimDuffysendingawayherteenagedaughterwasthebesthopeforsavingthegirl'slife. Corinnethen17hadbeenstrugglingwithbulimia贪食症andanorexia厌食症formorethanfiveyears.DuffyandherhusbandTerryfoundaresidentialfacilityinVirginiaandCorinnesignedonforatwo﹣monthstayinthesummerof2009. TodayCorinne'shealthyandpursuingamaster'sdegreeinColorado.Sheandherparentsbelievetheholistic整体approachandindividualizedfocuswerekeytoherrecovery.Andtheyknowtheyhadaccesstouniqueresources.WewerefortunatesaysDuffy.Wecouldpayforeverything. Butmanycan't.AccordingtoareportreleasedinNovember2014bytheStandingCommitteeontheStatusofWomenbetween600000andonemillionCanadianssufferfromaneatingdisorder.Publicinpatientprogramsoftenwon'tadmitpatientsuntilthey'reinlife﹣threateningcondition.Privateclinicsoftenhavealongwaitlistsandhighcosts﹣atHomewoodinGuelphOnt.aroomis﹩305to﹩360perday. TheDuffs'struggleledthentoconnectotherfamilieswiththequalityofcaretheyreceivedintheUnitedSates.Inlate2013heyfoundedtheWaterStoneClinicaprivateeatingdisordercenterinToronto. Sincethefacilityopened170clientshavereceivedtreatment.Theytakeyogadoarttherapyandparticipateinmealpreparationbuildingreal﹣lifeskillswithasupportteam.Programsrunweekdaysfrom8a.m.to2p.m.andnotablysofarWaterStonehasnowaitinglist. Butthisapproachiscostly:approximatelyS650perday.RealizingthatthepricetagputsWaterStoneoutofreachformanytheDuffyscreatedtheWaterStoneFoundation﹣acharitythatprovidesaidtopatientswhocan'taffordtreatmentthefollowingyear.Candidatesareassessedbywocommitteesthatmakeadecisionbasedonclinicalandfinancialneed.Since2014thefoundationhashelped100people. Duffyalsowantstochangethepublicsystem.InJuneofthisyearthefoundationawarded＄170000tofourOntariohopitalsofferingcreativetreatmenttoeatingdisorderpatients.Yespeopleneedprivatetreatmentshesaysbutit'simportanttohelpoutonabroaderscaletoo. 1WhydidDuffythinktheywerefortunate? A.Theyhadenoughmoneytoravelabroad. B.Theycouldaffordthemedicalresources. C.Theyhappenedtofindarighthospital. D.Theymetveryexperienceddoctors. 2WhatcanweinferfromParagraph3? A.Publichospitalscannottreatpatientswitheatingdisorder. B.ManypeoplediefromeatingdisorderinCanadianpublichospitals. C.Alotofeatingdisorderpatientshavenoaccesstopropertreatment. D.Inprivateclinicseatingdisorderpatientswillreceivetimelytreatment. 3WhichofthefollowingpatientswillreceivehelpfromWaterStoneFoundation? A.Pooroneswhosufferfromthedisease. B.Oneswhoarerejectedbypublichospitals. C.Oneswhoarefacingdeath. D.oldoneswhoarepoor. 4WhatdoweknowfromDuffy'swordsinthelastparagraph? A.Onlyprivateclinicscangivepropertreatmenttothepatients. B.Treatmentofthediseaseinpublichospitalsshouldbeimproved. C.Shewantstocooperatewithpublichospitalstohelpthepatients. D.Publichospitalsshoulddomoretohelppeoplewitheatingdisorder.
Anewstudyfrombrainresearchershelpsexplainhowthehumanbrainevolvedorchangedovertimetopermitpeopletospeakandwrite. MichaelUllmantheleadresearcheraprofessoratGeorgetownUniversityMedicalSchoolinWashingtonD.Chasbeenstudyinglanguagelearningformorethan20years. Ullmansayshisresearchshowsthatthehumanbraindoesnothaveaspecialareaorsystemformakinglanguage.Overtimewehavesimplyreusedorco﹣opted指派partsofourbrainforlanguage.Andthosepartshesaysareancient﹣oldereventhanhumansthemselves. Thisstudyexaminesthetheoreticalframework准则thatlanguageislearnedstoredand'processedintwoancientlearningandmemorysystemsinthebrain. UllmanHamrickandtherestoftheteamlookedatdatafrom16otherstudiesonlanguage.Theyfoundthatpeoplelearnlanguageusingtwomemorysystems:declarativeandprocedural.Memorizingvocabularyforexampleisadeclarativememoryprocess.Butlearninggrammarismostlyaproceduralmemoryprocess. Declarativememoryinhumansatleastiswhatwethinkofaslearningmemory'suchas'Ohrememberwhatyousaidlastnight'orthingslikethat.Andproceduralmotormemoryiswhatweoftencallmotormemory'suchashowyoulearntorideabicycle.OrUllmanaddsTheseproceduralmemoryskillsbecomesodeeplyleanedthatwearenolongerawarethatwearedoingthem. HoweverUllmanexplainsthatthetwolong﹣termmemorysystemscansharetasks.Andheadstheadultbrainusesthesystemstolearnlanguageabitdifferentlythanachild'sbrain. Adultlanguagelearnersofasecondlanguagemayusetheirdeclarativememoryforusinggrammarpatterns.Theythinkaboutitpurposefully.Forachildthegrammarmaycomemorenaturally.Theydon'thavetothinkaboutthegrammarrulesbeforespeaking. InadditiontolanguagelearnersUllman'sstudycouldhelppeoplewhohaveabraininjurythataffectsspeakingandwriting.Thisknowledgecanalsohelpthosewhohavelearningdisabilitiessuchasdyslexia阅读障碍.Peoplewithdyslexiahavedifficultyrecognizingwordsandsymbolsaccurately. 1HowdidUllmanstudyhuman'smemorysystems? A.Byexaminingthebrainwithhisteam. B.Bystudyinglanguagelearningoveryears. C.Bycomparingdifferentlanguagesyearafteryear. D.Byreferringtodatafromotherstudiesonlanguage. 2Whichofthefollowingisanexampleofmotormemory? A.Learningtomakeamodelplane. B.Rememberingthegrammarpatterns C.Repeatingwhatyouheard. D.Memorizingwhatyouread. 3Whatdoestheunderlinedworditreferto? A.Declarativememory. B.Anadultlanguagelearner. C.Usinggrammarpatterns. D.Asecondlanguage. 4What'sthemainideaofthetext? A.Humanhasadvancedourlanguageunderstanding. B.Anewresearchhelpspeoplelearnanewlanguage. C.Learningmemoryismoreactivethanmotormemory. D.Humanbeingslearnlanguageinprehumanareaofbrain.
解方程x-0.4=x+0.3
IhadstoppedtogetgasataplacewhereIalmostnevergo.Ihad1aboutcleaningmywindshield挡风玻璃.Butthenwhenthegas2wasalmostfinishedIdecidedforsomereasonto3andcleanit.That'swhatIwasdoingwhenawomanapproachedmeandaskedfor4. Thereweretwowomenonemiddleagedtheothertwenty﹣something5ayoungchildinthebackseat.Onadaywhenthetemperaturewaswellpast100theywere6inanoldcarwithnoairconditioningdrivingfromatownaboutanhouraway. CanyoutellushowtogettoMopacsir?Shehadafolded﹣upprintoutofdirectionsfromGooglemaps.Sure.WhereonMopacareyou7?Iasked.Sheunfoldedtheprintoutandshowedmethe8.Iknewitwellandstartedtogetthe9thatthismomentwasmeanttohappen.Iknow10wherethatis.Itoldher.Iusedtohavean11inthatbuildingtoworkin. I12givingdirectionstotheolderladyandthenagaintoher13whowasthedriver.IttookawhilebecauseI14eachinstructiontomakesuretheyunderstood.Inasinceremomentof15theolderladythankedme. Thewhole16helpedmemuchmorethanithelpedher.Ihadbeenhavingavery17day.InfacttheonlyreasonIhadgonetothatparticulargasstationwasthatIwantedtotakealittledriveand18myhead. AsIreplacedthegascaphavingsentthemontheirwayIsuddenly19thatIfeltbetter.Myheadwasclear.AndIam20fortherealgoodnessitbroughtintomylife. 1A.cared B.hesitated C.worried D.complained 2A.making B.leaking C.burning D.pumping 3A.goahead B.giveup C.setoff D.hurryup 4A.gas B.coins C.directions D.food 5A.upon B.with C.except D.beyond 6A.starving B.sheltering C.traveling D.hiding 7A.lost B.arranged C.located D.headed 8A.distance B.line C.sign D.address 9A.feeling B.evidence C.reward D.pleasure 10A.generally B.exactly C.wholly D.personally 11A.destination B.field C.office D.apartment 12A.thoughtof B.putoff C.turnedto D.endedup 13A.companion B.passenger C.helper D.colleague 14A.explained B.repeated C.demonstrated D.recalled 15A.silence B.coldness C.appreciation D.embarrassment 16A.situation B.accident C.conversation D.incident 17A.meaningful B.fortunate C.important D.difficult 18A.clear B.empty C.cover D.turn 19A.understood B.realized C.acknowledged D.assume 20A.anxious B.fit C.ready D.grateful
化简比．8.5米25分米
育人书店上周图书销售情况统计图．根据统计图填空1售出图书最多的一天比最少的一天多册．2本周一共售出图书册．3平均每天售出图书册．4星期五售出的图书册数是星期四售出册数的%．
Nowadays5GisverypopularamongcustomersbutChinaislookingpast5Gandintending.1builda6Gnetwork.Chinaisstartingresearchinto6G2makeitoneofthefirstcountriestodoso.Theactualdevelopmentof6Gwilt3officialbeginin2020butthecommercialusewillhavetowait. The4arriveof5Ghasattractedalotofpeople.ItnotonlybringsfastmobileInternetbutalso5enableustoconnectwithmachines.So6is6Gsupposedtobringespeciallyforordinarypeople?Foronething7willmakemobileInternetworkataspeedof1TBpersecondwhichmeansyoucandownloadaround100films8lessthanonesecond.Foranother6Gwillconnectourdevices9efficientlythan5GwhichmakesInternetcoveragemuchwider. Ofcoursethereisalongwaytogoyet10Ibelievetomorrow'sInternetisinourhands.Ourlifeinthefuturewillbewonderfulandfantastic.
求比值．
解方程-6x=-x+1
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高一下学期数学
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