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如图,在△ABC中,AB=AC,BC=12,E为AC边的中点,线段BE的垂直平分线交边BC于点D.设BD=x,tan∠ACB=y,则( )
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如图在△ABC中∠BAC=90°AB=AC点D.为边AC的中点DE⊥BC于点E.连接BD则tan∠D
.如图已知△ABC中AB=AC=10BC=16点P.D.分别在边BCAC上BP=12∠APD=∠B.
如图在△ABC中点D.E.F.分别是边AB.AC.BC的中点要判定四边形DBFE是菱形下列所添加条件
AB=AC
AB=BC
BE平分∠ABC
EF=CF
已知△ABC中BC=5以BC为直径的⊙O.交AB边于点D.Ⅰ如图①若AC与⊙O.相切且AC=BC求B
如图在△ABC中AB=ACAB=8BC=12分别以ABAC为直径作半圆则图中阴影部分的面积是为
已知△ABC中BC=5以BC为直径的⊙O.交AB边于点D.Ⅰ如图①若AC与⊙O.相切且AC=BC求B
如图△ABC中AC=8BC=5AB的垂直平分线DE交AB于点D.交边AC于点E.则△BCE的周长为_
如图在Rt△ABC中AB=6AC=8P.为边BC上一动点PE⊥AB于E.PF⊥AC于F.求△AEF面
如图在△ABC中AB=3AC=4BC=5P.为边BC上一动点PE⊥AB于E.PF⊥AC于F.则EF的
如图在△ABC中M.是BC边的中点AP平分∠A.BP⊥AP于点P.若AB=12AC=22则MP的长为
如图在△ABC中AB=3AC=4BC=5P.为边BC上一动点PE⊥AB于E.PF⊥AC于F.则EF的
在Rt△ABC中AC=5BC=12则AB边的长是______________.第14题图
如图D.E.是三角形ABC中边ABAC上的点DE∥BC已知AB=8cmAC=12cmBD=3cm则A
在Rt△ABC中AC=5BC=12则AB边的长是______________.
如图在△ABC中AB=6AC=10点D.E.F.分别是ABBCAC的中点则四边形ADEF的周长为
8
10
12
16
探究如图①在△ABC中DE是边BC的垂直平分线交BC于点D.交AB于点E.连结CE求证CE+AE=A
如图在△ABC中E.D.F.分别是AB.BC.CA的中点AB=AC=5BC=8则四边形AEDF的面
10
12
6
20
如图在△ABC中AB=AC=10BC=12AD⊥BC于点D.点E.在边AB上运动过点E.作EF∥BC
在△ABC中AB=AC点D.在边BC所在的直线上过点D.分别作DE∥AC交直线AB于点E.DF∥AB
在△ABC中AB=15AC=20BC边上的高AD=12试求BC边的长.
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8分TheTyrannosaumsrexalsocalledT.rexisknownforbeingkingofthedinosaurs.Howeverdinosaursinthesamefamilyweren'talwayssuchhugebeasts.EarlyancestorsoftheT.rexwereprettytinyscientistssay. ScientistshaveidentifiedanewcousinoftheT.rex.Thisdinosauronlyreachedaheightof3feet.That'sroughlytheheightofatoddler.Ifitstretcheditsduck﹣billedheadanadulthumanmaybewouldbelookingatitintheeyesaidSterlingNesbitt.Hediscoveredthedinosaur.NesbittisapaleontologistatVirginiaTech.Apaleontologistisapersonwhostudiesfossils. ThenewdinosauriscalledSuskityrannushazelae.Theanimaldatesback92millionyears.Thisisabout20millionyearsbeforetheT.rexstompedtheEarth. Thenewlydiscoveredcousinwasaboutthreetimeslongerthanitwastall.Itweighedbetween45and90pounds.That'salmostnothingcomparedtothe9﹣tonT.rex.TheT.rexweighednearlyasmuchastwohippos. Suskityrannushazalaeisn'tthefirstorevensmallestoftheTyrannosaurusfamilytree.StillNesbittsaiditprovidesthebestexampleofhowthisfamilyofsmallerdinosaurschangedovermillionsofyears.Theybecametoweringbeasts.ThehugeT.rexisthesubjectofhorrormovies. HansSuesstudiesancientlivingthingsattheSmithsonianInstitution.Hewasn'tpartofthestudy.Suessaiditwasanimportantfind.SuskityrannusisthefirstreallygoodrecordoftheearlytyrannosaursinNorthAmericahesaid. Thesemeat﹣eatersweren'tparticularlybigcomparedwithotherdinosaursaliveatthattime.Itisunclearwhydinosaursinthisgrouplaterbecamesoenormous. Nesbittsaidthenewlydiscoveredspeciesisprobablyamongthelastofthelittleguys.Itwasbiggerthanearliertyrannosau.andhadbigfeetneededforspeed.TheT.rexlostthese. 1WhySuskityrannushazelaeisthoughttobeagoodexamplefromtheTyrannosaurusfamilytree A.Itshowsthattyrannosaurswerequiteheavy. B.Itisthefastesttyrannosaureverfound. C.Itshowshowthetyrannosaurschangedovertime. D.Itisthesmallesttyrannosaureverfound. 2HowwasSuskityrannushazelaedifferentfromT.rex A.ItwassmallerthanT.rex. B.ItwasbiggerthanT.rex. C.ItatemoreplantsthanT.rex. D.ItranmoreslowlythanT.rex. 3WhichstatementistrueaboutT.rex A.Ithadaduck﹣billedhead. B.ItwasdiscoveredbyNesbitt. C.Itwasasheavyasahippo. D.Itwasameat﹣eatinganimal. 4Inwhichsectionofanewspapermaythistextappear A.Entertainment. B.Health. C.Education. D.Science.
已知am=3an=2则a2m-n的值为
25分假定你是李华.你在网上得知在你市留学的Larson最近总是失眠你决定给予他帮助.就此请你用英语给他写封电子邮件内容包括: 1.进行安慰; 2.询问失眠的具体原因; 3.约定地点以便当面详谈. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
8分WhenIwas12yearsoldIalreadyknewthatmyteenyearsweregoingtobetheworstyearsatmylife.Iwasatotaloutsiderbullied欺凌atschool.Ifeltcompletelyaloneinmysmalltown. ButbystartingtodovolunteerworkwhenIwas14Iturnedmyproblemintoapassionforhelpingothers.Theopportunitytopracticekindnessmademefeellikemylifehadagreaterpurpose.ThemorepositiveenergyIsharedthemorekindnessandappreciationIreceived.Irealizedthatmypurposeinlifewouldbetoreachouttopeoplespecificallyteenagersandhelpthemfeellessalone. Booksweremytimefriendsbackthen.Iwassothankfulthattheauthorswrotethosebooks.Thekindnesstheyofferedmewiththeirbookssavedmylife.OneofmybiggestdreamswastobecomeanauthorsoIcouldwritebooksthatwouldhelpotherteenagersthewaythosebookshelpedme. AftersurvivingterribleexperiencesatschoolandathomeImadeachoicetotaketheoptimisticpositiveroadinthenextstepsofmyjourney.MydreamcareeriswhatIamdoingnow.Ihavebeenafull﹣timeauthorofteennovelssince2007andamgratefulforthisamazingopportunitytoreachouttoreaderseverysingleday. KindnesssavedmewhenIneededhelpthemost.Evensmallactsofkindnesscanchangesomeone'slife.Youneverknowwhatsomeoneelseisgoingthrough.Butbypracticingdailykindnessyoubecomeanarchitectofpositivechange. 1Whatwastheauthor'slifelikewhenhewas12 A.Boring. B.Peaceful. C.Unhappy. D.Meaningful. 2Howdidthevolunteerworkbenefittheauthor A.Itmadehimpopularinhistown. B.Ithelpedhimfindthemeaningoflife. C.Ithelpedhimunderstandothers'livesbetter. D.Ithelpedhimfallinlovewithreading. 3Whydidtheauthorchoosewritingashisjob A.Hewasinspiredbyhisteacher. B.Hecouldpasspositiveenergytoreaders. C.Hewantedtosharehisschoolexperiences. D.Hefoundhehadatalentforwriting. 4Whatdoestheauthorsuggestreadersdointhelastparagraph A.Saynotobulliesbravely. B.Inspireotherstomakepositivechanges. C.Treatotherswithkindnessindailylife. D.Learntocaremoreaboutothers'feelings.
6分 MountHuangshanAnhui AUNESCOWorldHeritageSitesetamidsttheloveliestmountainsofChinaMountHuangshanakaMountYellowisaonce﹣in﹣a﹣lifetimetrekformanyChinese. The1863﹣metermountainisrenownedforitsoddlyshapedpinesspectacularrockformationshotspringsandseasofmistyandmelancholyclouds.Atriphereprovidesamountainoffeeling. Admissionfee:RMB230betweenMarch1﹣November30 RMB150betweenDecember1﹣February28 MajorcitiesconnectedtoHuangshanAirportbydirectflightsincludeBeijingShanghaiGuangzhouandXi'an. TEL::0559﹣5561111 HuangguoshuWaterfallGuizhou ThehighestwaterfallinAsiamajesticHuangguoshuYellowFruitTreeWaterfallplungesadramatic77.8metersacrossa101﹣meter﹣widespan. ThebestvisitingseasonisJunetoAugustwhenthewaterreachesapeakflowof700cubicmeterspersecond. Admissionfee:RMB180betweenMarch1﹣October31 RMB160betweenNovember1﹣February28 ThenearesttraffichubtoHuangguoshuWaterfallisHuangguoshuAirport.It'saboutsixkilometersaway.MajorcitiesconnectedtoHuangguoshubydirectflightsincludeBeijingandGuangzhou. TEL:0851﹣33596663 ShennongjiaHubei Morethan400peopleclaimtohaveseenaBigfoot﹣likecreatureamongthelushvegetationofShennongjiaoverthepastcenturyyetnohardevidencehasbeenfoundtoprovetheyeti'sexistence. The3200﹣square﹣kilometernaturereservealsopurportstobetheonlywell﹣preservedsubtropicalforestecosystemintheworld'smid﹣latitudeswithmorethan5000speciesofanimalsandplants.It'shometosnub﹣nosedorgoldenmonkeysarareandprotectedspeciesinChina. Admissionfee:RMB100 WuhanisthenearestmajorcityandtraffichubtoShennongjia.FromWuhan'slong﹣distancebusstationatXinhuaLutakethedailycoachtoXingshanCounty.Thentransfertoamini﹣busfromXingshantoShennongjia. TEL:0719﹣8128855 Formoreinformationjustclick:http://edition.cnn.com/travel/article/china﹣beautiful﹣places/index.htmlorWechat:CNN﹣Travel.Lettersarenotrecommendedatallthough. 1Whichisthebestchoiceforhotspring﹣loverswithtightbudgets A.MountHuangshaninOctoberB.HuangguoshuWaterfallinJuly C.MountHuangshaninDecemberD.Shennongjiaatanytime 2WhencanyouenjoythesplendidsceneofHuangguoshuWaterfall A.OnMayDay B.OnCPCFoundingDay C.OnNewYear'sDay D.OnNationalDay 3Howmanyapproachesarementionedinalltogetrelevanttravelinformation A.2 B.3 C.4 D.5
如图数轴上表示1的对应点分别为点A点B.若点A是BC的中点则点C所表示的数为 A. B. C. D.
求下列各式中未知数的值|a-2|=
6分EachyearTimemagazinepicksthebestoftheyear'sinventionsthatwillchangehowweliveworkandplay. Aira Forpeoplewhoareblindeverydaytaskssuchaswalkingtoschoolorwashingclothescanbetough.Whati£theycouldborrowtheeyesofsomeonewhocanseeThat'sthethinkingbehindAira.Airaisaservice.Userssendlivevideoesoftheirsurroundingstoanagent.Thisisdonewithspecialglassesorasmartphoneapp.Theagentsarealwaysavailable.Theycananswerquestionsdescribeobjectsandguideusersthroughalocation. 3MSmog﹣reducingGranules Smogisatypeofairpollution.Itcomesfromcarandfactoryemissions.Thecompany3Mhascreatedanewmaterial>3Msmog﹣reducinggranules微粒whichcanbreakdownsmoggranulesintheair.Thebroken﹣downgranulesarewashedawaythenexttimeitrains.Thegranuleswillhelpreduceairpollution. TheWhillModelCI Morethan3millionAmericansusewheelchairstogetaround.Butmostwheelchairsarehardtomoveonmanysurfaces.TheWhillModelCIisdifferent.Itisanewelectricwheelchair.Itcanclimbobstaclestwoincheshighandmovearoundintightspaces.Thewheelchaircanalsobetakenapartinminutes.Thismakesthedisabledeasytotransport. Allbirds Manyshoepartsarenotenvironmentallyfriendly.Allbirdsistryingtochangethat.ItistestinganewmaterialcalledSweetFoamwhichismadefrompartsofthesugarcane甘蔗plantthatwouldbethrownaway.AllbirdshasstartedusingSweetFoaminalineofflip﹣flops人字拖.Itplanstousethematerialinmoreofitsproductlines. 1WhoisAirafitfor A.Factoryworkers. B.Blindpeople. C.Highschoolstudents. D.Serviceagents. 2What'sthepurposeofdesigningtheWhillModelCI A.Todriveacareasily. B.Toreducetrafficaccidents. C.Toofferthedisabledconvenience. D.Toovercomeobstaclesinlife. 3Whichinventionsareenvironmentallyfriendly A.AiraandtheWhillModelCI. B.TheWhillModelCIandAllbirds. C.Airaand3MSmog﹣reducingGranules. D.3MSmog﹣reducingGranulesandAllbirds.
15分OnthefirstdayofherworkSallyfoundthataclassfullof1problemwaswaitingforher.Sixteachers2quitbeforeshecametotheclass.Whenshewalkedintotheclassroomitwas3amess:twoboyswerefightinginthefarcorneryettherestoftheclassseemednottonoticethem;somegirlswerechattingandsomewererunning;paperfoodpackagesandothergarbage4putonthedesk…Justwhenshewasabouttospeakastudent5wastwentyminuteslaterushedinandpushedheraside! Sallywalkedontotheplatformpickedupapieceofchalkandwroteontheblackboard:Rule1:Weareafamily!Allstudentsstopped6lookather.AndshecontinuedwithRule2Rule3…Inthe7followweeksSallyworkedout10classrulesandpostedthemonthewallsoftheclassroom.She8patientexplainedalltherulestothestudentsandrequiredeveryonetofollowthem. SurprisinglySallywasnotdrivenoutlike9formerteachers;insteadshewonrespectfromthestudents.Duringtheyearshewitnessedgradualchangesintheclass.Atthegraduationceremonyjustassheexpectedshewasveryproudtostandwithaclassfullofcaregoodmannersand10confident.
若=2=-3则b-a的值是
计算-3a42-a·a3·a4-a10÷a2
计算
30分Bookshavegreatpower.Betweentheir1readerscanbetransportedtoanywhereimaginableandbecomejustaboutanyone…oranything.Unfortunatelymanychildrenallovertheworlddon'thave2tobooks. ForseveralyearsnowMariaKellerateenagerfromMinneapolisMinnesotahasbeentryingto3thatfact. Whenshewas8yearsoldMariaalready4reading.Shealsonoticedthatsomeofher5didn'treadasmuchasshedid.Whenshe6hermotherwhythatwashermothersaidthattheymightnotbeableto7books.Mariahadneverthoughtofthis.Shecouldn't8thatsomechildrendidn'thavebedtimestoriesreadtothemandshebecame9tochangethis. Withhermother'shelpMaria10ReadIndeedwhichisanon﹣profitorganizationdedicated致力于tocollectinganddistributingbookstochildren11. DuringtheearlystagesofReadIndeedMariasetthe12ofcollectinganddistributing1millionbooksbythetimeshewas18. Itdidn'ttakelongto13thatgoal﹣todateshehascollectedover2.4millionbooksandhas14themtomanystatesandcountriesaroundtheworld. ShesaidIcannotlivewithout15.AsIcontinuemymission使命Ihavelearnedthatthe16ofkidswhohavenobooksisinthehundredsofmillions.SoIjustcan't17evenafterreachingmy18goalof1millionbooks. Sherecentlysetanewgoal:to19donationstokidsinneedineverystateintheUSandeverycountryintheworld.Shekeepstrackofher20onalargemapatthewarehouse仓库whereherbooksarestoredandsorted. 1A.themes B.pages C.blanks D.columns 2A.access B.time C.power D.regard 3A.accept B.introduce C.change D.understand 4A.imagined B.advised C.escaped D.loved 5A.classmates B.students C.teachers D.relatives 6A.showed B.asked C.required D.reminded 7A.choose B.spare C.afford D.keep 8A.decide B.explain C.believe D.agree 9A.excited B.worried C.satisfied D.determined 10A.contacted B.created C.studied D.discovered 11A.insafety B.indanger C.introuble D.inneed 12A.goal B.point C.rule D.limit 13A.set B.get C.reach D.start 14A.sold B.shipped C.lent D.returned 15A.food B.water C.friends D.books 16A.number B.variety C.reasons D.doubts 17A.setoff B.getaway C.dropoff D.giveup 18A.common B.original C.important D.distant 19A.distribute B.collect C.attach D.devote 20A.experience B.research C.progress D.investment
若x³=8则x=
8分Mostofusaretaughttopayattentiontowhatissaid﹣thewords.Wordsdoprovideuswithsomeinformationbutmeaningsarederivedfromsomanyothersourcesthatitwouldhinder阻碍oureffectivenessasapartnertoarelationshiptorelytooheavilyonwordsalone.Wordsareusedtodescribeonlyasmallpartofthemanyideasweassociatewithanygivenmessage.Sometimeswecangaininsightintosomeofthoseassociationsifwelistenformorethanwords. Wedon'talwayssaywhatwemeanormeanwhatwesay.Sometimesourwordsdon'tmeananythingexceptI'mlettingoffsomesteamsodon'ttakeitseriously.Idon'treallywantyoutopaycloseattentiontowhatI'msaying.JustpayattentiontowhatI'mfeeling.Mostlywemeanseveralthingsatonce.ApersonwantingtopurchaseahousesaystothecurrentownerThisstephastobefixedbeforeI'llbuy.TheownersaysIt'sbeenlikethatforyears.Actuallythestephasn'tbeenlikethatforyearsbuttheunspokenmessageis:Idon'twanttofixit.Weputupwithit.Whycan'tyouThesearchforamoreexpansiveviewofmeaningcanbedevelopedofexaminingamessageintermsofwhosaiditwhenitoccurredtherelatedconditionsorsituationandhowitwassaid. Whenamessageoccurscanalsorevealassociatedmeaning.Letusassumetwocouplesdoexactlythesameamountofkissingandarguing.Butonecouplealwayskissesafteranargumentandtheothercouplealwaysarguesafterakiss.Theorderingofthebehaviorsmaymeanagreatdealmorethanthefrequencyofthebehavior. Wewoulddowelltolistenforhowmessagesarepresented.ThewordsIfsurehasbeennicetohaveyouovercanbesaidwithemphasisandexcitementorritualistically例行公事地.Thephrasecanbesaidonceorrepeatedseveraltimes.Andthemeaningsweassociatewiththephrasewillchangeaccordingly.Sometimesifwesaysomethinginfrequentlyitassumesmoreimportance;sometimesthemorewesaysomethingthelessimportanceitassumes. 1Whatdoesthepassagemainlytellus A.Wordsprovidelistenerswiththemostimportantinformation. B.Listenerscangaininsightiftheylistenforwordscarefully. C.Thecomprehensionofamessageisinfluencedbyafewfactors. D.Whenmessagesarepresentedisofgreatimportance. 2WhatdoestheunderlinedsentenceI'mlettingoffsomesteaminPara.2probablymean A.I'mjustkidding. B.I'mjustcallingyourattention. C.I'msayingtheopposite. D.I'mgivingsomeimportantinformation. 3Whyshouldn'tpeoplerelytoomuchonwordsalone A.Wordsareusedtodescribeabigpartofthemanyideas. B.Wordsalwayssuccessfullyrepresentwhatwesay. C.Listenersmaynotdevelophealthyrelationships. D.Listenerswillfailtounderstandtheunspokenlanguage. 4HowdoestheauthordevelopPara.3 A.Byraisingquestions. B.Bylistingdata. C.Bygivingexamples. D.Byanalyzingcausesandeffects.
化简---|-3|=
8分MarylandisexpectedtobecomethefirststateoftheUSAtobanfoam泡沫橡胶foodpackagingtakeoutcontainersandcups.Thenewproposedlawpassedbothofthestate'slegislativebodies立法机关thisweekwithenoughvotestooverrideapotentialrejectionsignedbyGov.LarryHoganwhohasnotpubliclysignaledwhetherhesupportedthelawornot.Thelawwouldbecomethelatestinagrowingeffortworldwidetobankindsofsingle﹣useplasticproductsduetotheirimpactsontheenvironment. WiththestatewidepreviousbaneffortMaryland'stwocountiesPrinceGeorgeandMontgomeryhadalreadybannedfoampackaging.Del.BrookeLiermanwhointroducedsimilarlegislationlastyearandin2017sayschangingpublicopinionhelpedherthirdattemptsucceed. Ithinkwehavereachedadangerpointshesays.Peopleareseeinghowcommonsingle﹣useplasticsareandthattheyarenotrecyclableandnevergoingaway.Peoplearebeginningtounderstandtheimportanceoflivingmoresustainably. Thenewlawwouldbanfoamfoodpackagingforproductspackagedin﹣stateincludingrestaurantscafesfoodtrucksandgrocerystores.Thefinalversionofthebillincludesexceptionssuchasmeat.ThebanwouldgointoforceonJuly12020andwouldcarryfinesof﹩250. ThelegislationwasopposedbytheMarylandRetailersAssociationwhichwarnedthatoutlawingfoampackagingcouldhurtsmallbusinessesbyhighercosts.Foampackagingremainspopularamongrestaurantsandthefoodindustrybecauseitislightweightinexpensiveandkeepsfoodanddrinkshot. Foamfoodcontainershavebeenbannedincitiesorcountiesin11statesincludingSeattlePortlandWashingtonD.C.SanFranciscoandnumerousothercitiesinCalifornia.AbaninNewYorkCitytookeffectatthebeginningofthisyearafteralonglegalbattleendedlastsummer. 1HowdidMarylandcarryoutthebanoffoamfoodpackaging A.Bypassinganewlaw. B.Byfiningfoampackagingusers. C.Byclosingsomelocalcompanies. D.Byteachingpeopletofocusontheenvironment. 2Whatdoestheunderlinedwordoverrideinparagraph1mean A.Explain. B.Prove. C.Reject. D.Tolerate. 3WhatisthekeytothethirdsuccessaccordingtoDel.BrookeLierman A.Learningfromothercities. B.Gettingmedium'ssupport. C.Changingpublicopinion. D.Hurtingsmallbusinesses. 4Whatcanwelearnfromthetext A.Foamfoodpackageswilldisappearintheworld. B.PeopleinMarylandsupportthelawabsolutely. C.Foamfoodpackageshaven'tanyadvantageatall. D.MeatwillbeallowedtobesoldinfoamfoodpackagesinAmerica.
已知5x-1的平方根是±34x+2y+1的立方根是1求4x-2y的平方根.
计算
计算
10分Itisimportanttoteachyourdogtoguardyouandtheothermembersofyourfamilytofightagainstdanger.Herearesometipsonhowtotrainyourdogtoprotectyou. 1. Itisveryimportanttointroduceyourdogtootherpeopleandletitinteractwiththem.Agoodguarddogisfriendlytothepeoplearoundit.Thisexerciseisveryimportantbecauseitwillhelpthedogdistinguishbetweengoodpeopleandbadpeople.2. Usepropercommands Adogactsaccordingtohowithasbeentrained.Theonlywaytodothisisthroughcom﹣mandsandyourownbodyactionsandsounds.CommandthedogtoattackbysayingthewordAttackloudly.SoonwheneveryouusethecommandAttack!yourdogwillunderstandthatitneedstofightthethingyouarepointingat.3youmustalsotrainittostoptheattack. Teachnightguarding Teachyourdogtokeepacheckonthehousebytakingitaroundthehouseandmakingitsniffthearea.Youwillneedtodothisacoupleoftimessothatthedogunderstandsthatitneedstokeepacheckeverynight.4.Itwillcheckthehouseandreturnbackindoors. Rewarditforitsgoodbehavior GivingrewardssuchasapatahugverbalpraiseGooddog!ortreatsisanexcellentwayoflettingthedogknowthatyouarehappywithitsbehavior.5itisyourdutytomakesureyourdogisrewardedforitsgoodbehaviorandpunishedforitsbadbehavior.PunishmentinvolvesscoldingthedogbyusingthecommandBaddog!orNoverybad!Thiswillhelpthedoglearnthatitmustn'tdocertainthings. A.Sinceyouarethemaster B.Encouragecommunication C.Whileyouaretrainingthedogtoattack D.Trainanolderdogtoprotectitsmaster E.Afterafewdaysthedogwillbegintocheckonitsown F.Peoplewhoaregoodwillbethosewhoareallowedtocomeclosetoit G.Ifyourdogdoesnotcomeinsideyouwillneedtocommandittogetback
10分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.每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:把多余的词用斜线\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. I'vehadmanydreamssinceIwasachild.Nowmydreamistoopensacafe.Thoughitmayappearsimpleitrequiredalotofideasandefforts.WhatIwantisnotjustanordinarilycafebutaveryspecialone.IwantmycafehaveaspecialthemesuchaslikeTangDynasty.Inthecafecustomerswillenjoyyourselvesinthehistoricalenvironmentwhatiscreatedforthem.IfIsucceedinmanageoneIwillopenmore.Iwishtohaveachainofcafesinmanydifferentcity.Eachofmycafeswillhaveadifferentthemeandanuniquestyle.
计算
计算2×3
计算-+的值是
的平方根是
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