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如图，正方形ABCD的边CD在正方形ECGF的边CE上，连接DG，过点A作AH∥DG，交BG于点H．连接HF，AF，其中AF交EC于点M． （1）求证：△AHF为等腰直角三角形． （2）若AB＝...
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如图正方形ABCD的边CD在正方形ECGF的边CE上连结BEDG.1观察猜想BE与DG之间的大小关系
在正方形ABCD中点EFGH分别在边ABBCCDAD上四边形EFGH是矩形EF=2FG那么矩形EFG
已知正方形ABCD.1如图①E.F.分别是边CDAD上的一点且AE⊥BF求证AE.=BF.2M.N.
如图正方形ABCD的边EF在△ABC的边BC上顶点D.G分别在边AB.AC上已知BC=6△ABC的面
如图正方形ABCD的边CD在正方形ECGF的边CE上连接BEDG.1观察猜想BE与DG之间的大小关系
如图在正方形ABCD中E.F.分别是边BC.CD上的点∠EAF=45°△ECF的周长为8则正方形AB
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若正方形的边长为a则其对角线长为______若正方形ACEF的边是正方形ABCD的对角线则正方形AC
如图正方形ABCD的边CD在正方形ECGF的边CE上O.是EG的中点∠EGC的平分线GH过点D.交B
在正方形ABCD中点E.F.G.H.分别在边ABBCCDAD上四边形EFGH是矩形EF=2FG那么矩
如图所示竖直面内的正方形ABCD的边长为d质量为m带电量为+q的小球从AD边的中点以某一初速度进入正
如图点E.F分别是正方形纸片ABCD的边BC.CD上一点将正方形纸片ABCD分别沿AE.AF折叠使得
如图矩形ABCD的是四个顶点都在⊙O.上且BC
如图正方形ABCD的边CD在正方形ECGF边CE上DG平分∠EGC延长GD交BE于HEG与FH交于
如图所示正方形ABCD的边长是2以正方形ABCD的边AB为边在正方形内作等边三角形ABEP.为对角线
如图在正方形ABCD中E为CD边上一点以CE为对角线构造正方形CMEN点N在正方形ABCD内部连接A
如图在平面直角坐标系中点A.和点B.分别在x轴和y轴的正半轴上OA=OB=a以线段AB为边在第一象限
如图正方形ABCD的边CD在正方形ECGF的边CE上连结BEDG.1观察猜想BE与DG之间的大小关系
如图所示点E.为正方形ABCD的边CD上的一点F.为边BC的延长线上一点且CF=CE.若正方形ABC
猜想与证明如图1摆放矩形纸片ABCD与矩形纸片ECGF使B.C.G.三点在一条直线上CE在边CD上连
矩形纸片ABCD中AB=5AD=4.Ⅰ如图①四边形MNEF是在矩形纸片ABCD中裁剪出的一个正方形.
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ChangeyourlifearoundinfoureasystepsChangeyourwayofthinkingYourhomeenvironmenthasnodoubtinstilled灌输certainexpectationsinyouabouthowyourlifeshoulddevelop.1.dependingonyourbackground.Tochangeyourlifearoundstartbyshakingoffsuchexpectationsandsettingyourselfsomenewgoals.2Askyourselfwhatyoureallywantoutoflife.Makealistofideasaboutyourcareermoneypeopleyoulovethingsyou'dliketodoetc.Studyitsoastodecidewhichthreeitemsarethemostimportanttoyou.3.It'sunrealistictoimaginedoingso.Butbyconsciouslychoosingthreespecificgoalsyouwillbeamazedathowmuchmorefocusedanddeterminedyoufeel.OvercomeyourdoubtsConfidenceiseverything.Allthesameacertainamountoffearanduncertaintyisnatural.4.andremainfocusedonyourgoal.Althoughyoumaybeshakingontheinsideshowoutwardconfidenceandbelieveinyourself.Learntovieweveryobstacleasachance.Ifatfirstyoudon'tsucceed﹣﹣Weareallafraidoffailing.Bethatasitmayfailureisanimportantpartofsuccessandyouneedtoholdontothatfactandseesetbacksassteppingstonestowardsyourfinalgoal.5.youshoulduseyourmistakesaslearningtoolsandmoveon.A.LimityourtimeB.PracticehidingitC.FocusyoureffortsD.DifficultthoughitmayseematthetimeE.HoweverthesemaylimityouorbemisleadingF.Rememberit'snevertoolatetolearnsomethingnewG.Howevermuchyou'dliketoachieveeverythingonyourlist
Istillkeepthephototakenbymymomandtreasureitasmylife.ThatwasmanyyearsagowhenIwastakingsummer1incollegeandwasmovingintoanapartment.Iwascarryingtwo2witheverythingthatIwasgoingtoneedto3the6weeksofclasses.ItisthelasttimeIcanrememberevertravelingthat4.Sincethenmypossessionshave5.Thoughmostofthemlikemyfurnitureare6thereareoccasionswhenIfeel7downbyallofthem.IamsurethatIwillneedtwotrucksratherthantwosuitcasesifIever8again.Onethoughthoweverbringsme9.ItistheknowledgethatwhenImakemy10journeyfromthisworld﹣IamdeadIwon't11anyofthosethingswithme.TheonlythingsIwilltakewithmewillbewhatIhavepackedinthesuitcaseofmy12.Iwillbecarryingwithmeevery13thingIeverdideverylovingthoughtIeversharedandeverybitof14Ieverbroughtintothisworldtomakeotherslaugh.IwillbecarryingallthegoodnessIgavetoothersallthe15Iwasabletoshare?andallthejoyIcreated.Thesethingswon'tbeweighingmedown.InsteadIwillbesurely16.Asyouare17foryourownfinaltrip﹣completelypreparedmakesurethatyoushouldnotmakeyour18heavy.Makesurethatthebelongingsinyourhome19takesecondplacetotheloveinyourheart.Whenyou20itinHeavenGodandallHisangelswillsmile.1A.journeys B.holidays C.lectures D.classes2A.trucks B.suitcases C.books D.computers3A.bringout B.takeaway C.getthrough D.payfor4A.hard B.light C.unforgettably D.happily5A.gone B.appeared C.lessened D.grown6A.expensive B.useful C.beautiful D.enjoyable7A.weighed B.put C.turned D.calmed8A.treasure B.possess C.move D.demand9A.confusion B.matter C.hate D.comfort10A.final B.pleasant C.tiring D.latest11A.compare B.take C.fill D.stand12A.soul B.body C.home D.college13A.strange B.little C.kind D.smart14A.knowledge B.hope C.thought D.laughter15A.love B.information C.time D.money16A.burstout B.wornout C.givenup D.liftedup17A.ready B.eager C.fit D.responsible18A.world B.weight C.travel D.heart19A.hardly B.always C.rather D.never20A.cover B.wrap C.unpack D.untie
SmallincreasesintemperaturefoundtoaddpowertostormsintheAtlantic.HurricanesthatformintheAtlanticOceanareexpectedtogainconsiderablestrengthastheglobaltemperaturecontinuestoriseanewstudyhasfound.UsingmodelingdatafocusedontheconditionsinwhichhurricanesformagroupofinternationalresearchersbasedatBeijingNormalUniversityfoundthatforevery1.8°F1℃riseoftheEarth'stemperaturethenumberofhurricanesintheAtlanticthatareasstrongorstrongerthanHurricaneKatrinawillincreasetwofoldtosevenfold.Hurricanestrengthisdirectlyrelatedtotheheatofthewaterwherethestormforms.Morewatervaporintheairfromevaporatingoceanwateraddsfueltohurricanesthatbuildstrengthandheadtowardland.HurricaneKatrinaiswidelyconsideredthemeasureforadestructivestormholdingthemaximumCategory5designationforafull24hoursinlateAugust2005.ItloststrengthasitpassedovertheFloridapeninsulabutgaineddestructivepowerfightbeforecollidingwithNewOrleanskillingmorethan200peopleandcausing﹩80billionindamage.ThestudypointstoagradualincreaseofKatrina﹣likeevents.Thewarmingexperiencedoverthe20thcenturydoubledthenumberofsuchdebilitating将人类摧垮的storms.Buttheongoingwarmingoftheplanetintothe21stcenturycouldincreasethefrequencyoftheworstkindsofstormsby700percentthreateningcoastlinesalongtheAtlanticOceanwithmuitipleCategory5stormseveryyear.'Ourresultssupporttheideathatchangesinregionalseasurfacetemperaturesistheprimarycauseofhurricanevariability'saidAslakGirnsteadaresearcherwiththeCenterforIceandClimateattheUniversityofCopenhagen.Thelargeimpactofsmallsea﹣surfacetemperatureincreaseswasmorethanGirusteadandhiscolleagueshadanticipated.TheentirestudywaspublishedintheProceedingsoftheNationalAcademyofSciences.Globaltemperatureshavesteadilyincreasedmakingthepastdecadethewarmestonrecord.EarlierthisyearclimateresearchersreportedthattheEarth'stemperatureshaverisenfasterinthelastcenturythanatanypointsincethelasticeage11300yearsago.Theprimarycauseacouseususofscientistshassaidistherisingemissionsofgreenhousegaseslikecarbondioxideandmethane.Pasthurricaneshavesupportedthestudy'sfindingthatglobaltemperatureriseislinkedtomoredestructivestorms.AccordingtotheNationalCenterforAtmosphericResearchwhilethefrequencyofstormsdoesn'tappeartohaveincreasedthepercentageofstrongoneshasrisensharplyoverthepastfewdecades.Thetrendmaybesimilarfurtherbackintimebutcomprehensivehurricanedatadoesn'texist.1AccordingtotheteamofinternationalresearchersbasedatBeijingNormalUniversitytheriseoftheEarth'stemperatureislikelytocause.A.thecomingoficeageB.lessintensehurricanesC.moreKatrina﹣likeorworsehurricanesD.moregreenhousegasesintheatmosphere2Theoceanwaterintheregionwherethestormforms.A.isheatingthehurricanesB.evaporatesandbecomesfuelC.headstowardlandD.turnsintowatervaporthatmakeshurricanesstronger3Whatresultcanregionalseasurfacetemperaturechangesproduce?A.Hurricanechanges.B.Increasinggreenhousegasemissions.C.Globalwarming.D.Destructivehurricanes.4Itcanbeinferredfromthepassagethat.A.thereisnolinkbetweengreenhousegasemissionsanddestructivestormsB.reductionofgreenhousegasemissionsmayreducedestructivestormsC.thehigherpercentageofstrongonesroseasmorehurricanesappearedD.pastrecordsonhurricanesincludedeverythingneeded
Asmallstudyofprofessionalsoccerplayersfoundthateventhosewhohaveneverexperiencedaconcussion脑震荡stillhavechangesinthewhitematteroftheirbrainsprobablyfromroutineandunprotectedheaders头球.Thebrain'swhitematterismadeupofnervesandtheirmyelin髓磷脂protectivecoatingthatplayanimportantroleinconnectingbrainareasandsettingupnervousnetworks.PreviousstudieshaveinvestigatedhowconcussionsleadtochangesinthiswhitematterbutanewstudyledbyDr.IngaK.KoerteofHarvardMedicalSchoolinBostonisoneofthefirsttolookathowevenblowstotheheadthataren'tconsideredconcussionsmayleadtobraininjury.InthestudytheresearcherscomparedbrainscansoftwelvemalesoccerplayersfromGermantop﹣levelsoccerclubswhohadnotexperiencedaconcussiontobrainscansofelevencompetitiveswimmerswhohadsimilarlyneverexperiencedrepetitivebraininjury.TheresearchteamuseddiffusiontensorimagingDTIwhichishighlyeffectiveatcatchingwhitematterchanges.Theresearchersfoundsurprisingchangesinthewhitematter.Eventhoughtheplayershadnoconcussionstheirbrainstoldadifferentstoryofdamageincludingchangestothemyelincoatingsurroundingnerves.'Althoughourstudyissmallitisthefirsttolookatsoccerplayerswithnosymptomsofconcussions'saysKoerte.'Wethinkitisanimportantfindingnotjustforsoccerplayersbutotherathletesofothersportstoo.''Ifplayersaredamagingtheirbrainsitisalargepublichealthissuebecauseeveryoneevenatayoungagehitstheirheadlikethis'saysDr.JeffreyBazariananassociateprofessorofemergencymedicineatauniversity.HewasnotinvolvedwiththestudybuthasalsousedDTItoassessmildbraininjuryinhighschoolfootballandhockeyplayers.Koertesaysmoreresearchisneededtogetabetterideaofhowpotentiallydamagingheadinjurycanbeatyoungages.IfitturnsoutrepetitiveheadblowsareharmingbrainfunctionsKoertesaysregulationslikestoppingplayingafterafixednumberofhitsmaybeneeded.Orheadingshouldn'tbeallowedatalluntilacertainage.ThestudyispublishedintheJournaloftheAmericanMeclicalAssociationJAMA.1Accordingtothestudysoccerplayersarelikelytobethreatenedby.A.sportsinjuriesB.routineheadersC.mildconcussionsD.fiercecompetition2Thestudyexplorestheconnectionbetween.A.concussionsandthewhitematterB.repetitiveheadblowsandbraininjuryC.thewhitematterandnervousnetworksD.nervesandtheirmyelinprotectivecoating3Howmanyplayerstookpartinthestudy?A.Eleven.B.Twelve.C.Twenty﹣three.D.Twenty﹣four4Dr.Bazarianseemstofeelthefindingsofthestudymaybe.A.importantB.interestingC.incorrectD.conflicting
Havingbattledwiththeiroverwhethertoofferhelptoanagedmanorwomanwhohasfallenovermostpeoplechoosetohelp. A.compromise B.contradiction C.conscience D.competence
Wecompletedonethirdoftheprojectandtheloaninplacewehadtodelaytheresttillthenextmonth. A.notarranged B.wasnotarranged C.notarranging D.hadnotbeenarranged
WeofferedtopayourhalfofthecostthatwasneededtorestoretheshareddoorwaybutCharleswouldhaveofit. A.nothing B.anything C.none D.any
假定你是高三学子李华在离高考还有一个月之际你给校报英语天地投稿给本校高三学生写一封建议信对考前一个月的英语学习生活等提出自己的建议.内容包括: 1学习方法心态调整; 2生活作息规律; 3表达祝福 注意:1.词数100左右;2.可以适当增加细节以使行文连贯. Deareditor AsaseniorofhighschoolIfindmanyofmyfellowstudentsarestressedandworriedabouttheirEnglishwhilepreparingforthecomingCollegeEntranceExamination. ThereforeI'dliketogivethemsomeadvice. Yours LiHua
Youngcoupleswillbehappytoseetheirbabieswithgoodhealthandintelligencewhentheyareborn. A.tobless B.blessing C.blessed D.beingblessed
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l0处多者从第11处起不计分. DearLiMei Withthemidtermexamcomeyoumustgetpreparedforit.Inmyopinionthatyouneedisarightstudymethod.Asweallknowtherearethreestageinstudy﹣previewstudyinclassandreviewamongthemreviewisthemostimportant.Youshouldfirstmakereviewplanandthensticktoit. Ifollowmyreviewplanstrictlyandhadmadeprogress.Itturnsouttobewellenough.Ofcoursetherearemanywaystoreview.SolongasyoureviewregularI'msurethatIcanfindmorewaystostudywell. IfyouhaveanyquestionsyoumayaskmeandI'mgladtohelpyou.WecanmeetinourschoollibraryineveryFridayafternoon. Bestregards. Yours LiHua
VioletteChilde67isadiningcompanionwhohelpsservepatientslunches.Therolewasintroducedtenyearsagobyadietitianconcerningthatsomepatientswerenoteatingtheirmeals.'Manyofourpatientsareelderlyandcanbeconfusedbythenoisybusyenvironmentofthehospitalandsowon'tfocusoneating'explainsYvonneDouglas﹣Morrisheadofvolunteeringwhooverseestheactivitiesofall528ofthetrustyvolunteers.'Staffarebusywiththeclinicalsideofthingssothediningcompanionswereintroduced.Theywillassistthepatientsandencouragethemtoeat'Violettearetiredlibrarymanagerhasbeenhelpingoutforsixyears.'Itmakesmefeelabitmorecomplete'shesayssimply.'Helpingwiththemealsfreesupthenursestogetonwithotherthings.Ibelieveinbeingapartofthecommunityandthishospitalispartofmycommunity.'Anotherkeyroleisplayedbythedischargevolunteerswhooffersupporttotheelderlyespeciallythoseaged70andover﹣﹣leavinghospitaltoreturntoanemptyhome.Theteamhasabudgetof£10perpersonandwillpoptotheshopsandbuymilkbreadandamealtotidethemoverforthefirstfewhours.Theythencallthepatients他ularlyforaslongastheyneedtocheckhowtheyaregettingonandiftheyneedextrasupport.ThevolunteersinKingstonworkfromadedicatedoffice﹣asmallroominoneofthebuildingsonthehospitalgroundswhereaChristmastreedecoratedwithbaubles小饰物bearingthefacesofvolunteerssitsinthecomer.'Allthevolunteerscomeandgatherhereitgetsverybusyattimes'smilesNicolaHutin*67adischargesupportvolunteer.Amotheroftwoandgrandmotheroffourshewasamembershipcoordinator协调员foratradeassociationuntilsheretiredandhassincevolunteeredatthehospitalonemorningaweekfor18months.1Whatcanwelearnaboutdiningcompanions?A.Theirworkingconditionsarenoisy.B.Theyaregreatassistantsfordoctors.C.Theyoftenmakepatientsmorenervous.D.Theoccupationexistedmorethantenyearsago.2WhatdoesViolettethinkofherwork?A.Shefindsittiringandboring.B.Shefindsiteasytocompleteherwork.C.Shebelievesitgivesherasenseofbelonging.D.Shebelieveshelpingpatientswithtnealsistofreeupthecommunity.3Whatdoesadischargevolunteerdoforthepatients?A.Raisemoneyfortheelderly.B.Payavisittothemathome.C.Buydailynecessitiesforthem.D.Ringtochecktheirhealthcondition.4Whichofthefollowingcanbestdescribethethemeofthetext?A.Itisnevertoooldtolearn.B.Manyhandsmakelightwork.C.Healthisbetterthanwealth.D.Godhelpsthosewhohelpthemselves.
假定你是李华你校学生会创办的你最喜爱的英语月报EnglishMonthly向读者征集意见.请你给主编写封邮件内容包括: 1.自我介绍; 2.说明该报优点:内容丰富;指导英语学习; 3.提出建议:多介绍中国传统文化及励志故事. 注意: 1.词数100左右; 2.可以适当增加细节以使行文连贯.
Moreandmorepeopleprefertoliveinthecountrysideappealforthemliesinthequietandslow﹣pacedlife. A.who B.which C.whose D.what
近年来我国科学家发现了一系列意义重大的铁系超导材料其中一类为Fe﹣Sm﹣As﹣F﹣O组成的化合物．回答下列问题 1元素As与N同族．预测As的氢化物分子的立体结构为其沸点比NH3的填“高”或“低”其判断理由是． 2Fe成为阳离子时首先失去轨道电子Sm的价层电子排布式4f66s2Sm3+价层电子排布式为． 3比较离子半径F﹣O2﹣填“大于”“等于”或“小于”． 4一种四方结构的超导化合物的晶胞如图1所示．晶胞中Sm和As原子的投影位置如图2所示． 图中F﹣和O2﹣共同占据晶胞的上下底面位置若两者的比例依次用x和1﹣x代表则该化合物的化学式表示为通过测定密度ρ和晶胞参数可以计算该物质的x值完成它们关系表达式ρ＝g•cm﹣3． 以晶胞参数为单位长度建立的坐标系可以表示晶胞中各原子的位置称作原子分数坐标例如图1中原子1的坐标为则原子2和3的坐标分别为．
WantawonderfultravelinLondon?Don'tmissthefollowing!CartoonMuseumThishighlyentertainingLondontouristattractioncoversthehistoryanddevelopmentofBritishcartoonsfromthe18thcenturytothepresentday.Youcanfindadetailedcollectionofalltypesofcartoonsinthismuseumincludingcaricatures讽刺漫画andrareexamplesofcartoonart;it'sanidealplacetoentertainkidsofallagesaswellasaseriouscollectionforanimationenthusiasts.Thereareoverninehundredpiecesonexhibitandthemuseumregularlyholdseventswherebothchildrenandadultscanparticipate.BookingfortheseeventsisrecommendedduetothepopularityyearroundofthisLondonMuseum.Telephone:02075808155ChislehurstCavesChislehurstinLondonishometochalkcavesthatwereminedbyhandforover8000years.AtourofthesecavesisanexcitingwaytoseehowBritishpeoplehaveimpactedontheirenvironmentoverthousandsofyears.Telephone:02084673264TheOldOperatingTheatreMuseumTheOldOperatingTheatreMuseumisoneLondonmuseumofferingafascinatinginsightintothemedicalprofessionofthepast.This300﹣yearoldherbgarret阁楼isBritain'sonlysurvivingoperatingtheatrewithawoodenoperatingtableandanobservationstandfromwhichvisitorscanwitnesssurgeryperformed.Telephone:02071882679CurzonMayfairCinanaMuseumRecentlyvotedoneofLondon'sbestcinemasbyTimeOutreaderstheCurzonMayfaircinemaiseverythingyouwouldexpectfromthisparticularpartoftown:luxurious奢华的andtasteful.Showingmostlyart﹣houseandindependentfilms.theCurzonMayfairisuniqueintheworldofLondoncinemaforitsroleinscreeningthesefilmsforindustryandpress.Telephones033332101041WhatcanwelearnfromtheCartoonMuseum?A.Itisdesignedonlyforkids.B.ItistheoldestcartoonmuseuminBritain.C.Visitorscantakepartintheactivitiesheldinit.D.Onemustbookthemuseuminadvancetovisitit.2Whichwillyoucallupifyou'dliketoknowsurgeryofthepast?A.02075808155・B.02071882679.C.03333210104.D.02084673264.3Whichofthefollowingmayattractanaturelover?A.ChislehurstCaves.B.CartoonMuseum.C.CurzonMayfairCinemaMuseum.D.TheOldOperatingTheatreMuseum.
Visuallanguageisaformofcommunicationthatusesvisualelements元素asopposedtoformalwrittenlanguagetoconveymeaningoranideaGraphicacytheabilitytocommunicatevisuallyisconsideredasimportantasliteracyandnumeracytheabilitiestoreadandcount.Somepeoplearevisualthinkersusingthatpartofthebrainthatisemotionalandcreativetoprocessandgivemeaningtoinformation.Visualcommunicationcanfindexpressioninpaintingsdrawingssymbolsorsimplylinesandshapesarrangedforaspecificeffect.Artisanexampleofvisuallanguage.Apaintingorsculpturecanconveyideasorarousespecifickindsofemotionalresponses.Itmayalsoexpressideasabouthistoricaleventsabstractconceptsorsimplybeaboutthewaycertainshapesorforms'work'togetherorcreateacertaineffectonthemind.Someresearchersbelievethatdifferentpartsofthebrainrespondinuniquewaystocolorsandshapes.Pictograms象形文字andideograms表意文字aretypesofvisuallanguage.Pictogramsarepicturesthataresimilartowhattheyrepresent.Theyarestillusedtodaytocommunicateinformation.Manypeoplearoundtheworldarefamiliarwiththepictogramsindicatingsuchthingsasairportspublicfacilitiesandnon﹣smokingareasindicatedbyacigaretteinacirclewithalineacrossit.Ideogramsarepicturesthatrepresentideasandcanoftenbeunderstoodwithouttheaidofwrittenlanguage.SomescholarstrackmodernalphabetstopicturesLettersareactuallyancientpicturesandwordsareaseriesofpictures.Modernalphabetlettersarenotonlyphonetic语音的symbolsbutarebasedonancientreligiousimagesandsymbols.Musivisualcommunicationisalsoapartofvisuallanguage.Thetermreferstomusiccreatedspecificallytoimprovethevisualexperienceoffilm.Itcorrespondstotheimagesbeingseenonthescreenandthemusicmayarouseasenseofterrorfearorotheremotions.Mostmoviegoersunderstandthelanguageofmusicalcluesshowingthatsomethingdramaticorimportantisabouttohappen.1Whatisvisuallanguageaccordingtothetext?A.Anideaconveyedbyartists.B.Anabilitytoreadandcount.C.Asystemusedtoarouseemotions.D.Awayofprocessingandexpressinginformation.2Whatmaybetheoriginofthemodernalphabetletters?A.Publicfacilities.B.Imaginarylines.C.Religiousimages.D.Livingconditions.3Whatcanwelearnaboutthemusicofafilmfromthelastparagraph?A.Itcanhelppredicttheplot.B.Avisualthinkercanmakeitbetter.C.Itoftenchangeswithouttheaudience'snoticeD.Itmakesthefilmmoreemotionalandcomplex.4Whatcanbethebesttitleofthetext?A.HowdoesVisualLanguageAffectLife?B.HowcanWeLearnVisualLanguage?C.WhatIstheOriginofLanguage?D.WhatIsVisualLanguage?
FormepersonallyIcouldwritefordaysaboutmanydifferentsituationswhereadversity逆境1mylife.NowletmetellyouoneexperiencewhereIalmostletadversity2.Wehadaglassstudiowhichwaslocated50feetfromourhome.Acoupleofyearsagoweexperiencedan3winter;wehadalotofsnowandice.The4oftheiceandsnow5theroofonourstudiotakingwithitoneofoursourcesofincome.6itdidfalldownwegotontheroofandtriedto7thesnowandicebutwhenyouhave5feetoficeandtemperaturesofminus20Celsiusitwaspretty8todo.Wehadapartnercomeintohelpustryto9theroofbysupporting.Intheendtherewas10thatcouldbedone.Theroofcamedown.Wehadmovedalotofourgoodsandtoolsfromthestudio11welostalotalso:glasskilnsworkbenchestonameonlyafewoftheitems.Itwasa12experience.Herewewereinthemiddleofwinterwithourstudiocollapsed.Wecouldn'tworkaswehadalmost13allthematerialsinabuildingwewerenotusing.Wecouldhavedoneoneofthetwothings:wecouldsimplysaythatwecannolonger14ourglassbusiness.Letmetellyouthatthiswascertainlythoughtthat15ourmind.Orwecouldfindawaytogetourstudiobackupandrunning.Wepickedthe16option.Wehadalargebarnthatwewerenotusing.Sowerenovated翻新thebarn17ourworkingareaandtodaywehaveanicerstudiothanwe18had.Iftheadversitywewere19hadnothappenedweprobablywould20beworkingintheoldstudio﹣astudiothatwaslessefficient.1A.influenced B.promoted C.protected D.prevented2A.suffer B.escape C.work D.win3A.awful B.wonderful C.aware D.awkward4A.size B.height C.temperature D.weight5A.limited B.destroyed C.pressed D.struck6A.Unless B.Before C.Although D.When7A.remove B.reduce C.recycle D.replace8A.worthwhile B.rewarding C.tough D.annoying9A.examine B.test C.restore D.secure10A.nothing B.enough C.all D.something11A.for B.or C.but D.so12A.vain B.happy C.exciting D.disastrous13A.displayed B.arranged C.presented D.piled14A.predict B.inform C.conduct D.quit15A.approached B.cleared C.crossed D.comforted16A.former B.latter C.easier D.further17A.evaluated B.organized C.redesigned D.reserved18A.previously B.hopefully C.eventually D.desperately19A.concernedabout B.facedwith C.cautiousabout D.awareof20A.still B.ever C.even D.already
Atouringdigitalexhibitionofaformeremperors'residenceistokickoffinlateApriltheBeijing﹣sPalaceMuseumalso1knowastheForbiddenCityandShenzhen﹣basedculturalcompanyArtronannouncedonFriday.Theexhibitionwillusevirtual2real.andartificialintelligenceamongmanyothertechnologiesto3wellintroducethefruitsofacademicresearchonYangxinDiantothepublic4digitallypresentingtheabundantcollectionofculturalrelicsandofferinteractiveexperiencestovisitors.Thehallbuiltinthemid﹣16thcenturyduringtheMingDynastywasalso5residenceoflasteightemperorsoftheQingDynasty.Anditisoneofthemostimportant6buildintheForbiddenCity7wasChinasimperialpalacefrom1420to1911.YangxinDian8shuttothepublicsinceDecember2015foramajorrenovation维修.HoweveritsculturalrelicshavebeenexhibitedincitieslikeShenzhenandHongKong.Therenovationistolastuntil2020.Meanwhile9offeramorelmmersiveexperiencetovisitorsthePalaceMuseumdevelopedthedigitalexhibitionin2017presentedinthemuseum'sdigitalgallery.In2018itwasshownattheArtronArtCenterinShenzhenattractingabout10000visitorsovertwomonths.TheupcomingexhibitiontourwillstartfrominL+MallinShanghai10thelaterdestinationsofthetourhaven'tbeenannounced.
SignsofEatingDisorderAbout30millionAmericanslivewithaneatingdisorder.1Yetmanyothersareoftenhiddeninplainsight.It'simportanttoknowthesymptomsinthosewhomightbeatriskforaneatingdisorder.They'reconstantlytalkingaboutdieting.Thediscussionaroundchangingeatinghabitsisincrediblycommon.Lookatanylifestylemagazineorwebsiteandyou'lllikelyfinddietingtipsandadvice.2Ifsomeoneyouloveisconstantlytalkingaboutfoodortheirdietinghabitsitmightbeasignofconcern.3Changesinmoodorbehaviorssurroundingfoodorexercisecanbesignsofconcern.Thiscouldmeanaswitchinactivitylevellikeoverexercisingtoooftencountingcaloriesfrequentlyvisitingthebathroomaftereatingfastingoreatingtoomuch.4They'reconstantlyturningdownfood﹣centricsocialgatherings.Avoidingsocialinteractionssuchasbirthdaypartiesorgoingouttodinnerwithfriendsisasignificantdangersignal.Peoplelivingwiththeconditionhaveanintensefocusonfoodorbodyimage.Theywillkeepawayfromsituationslikelyonesthatoncebroughtthemjoy﹣wherethatdeterminationmightbetested.Thebestwaytosupportsomeonewhomaybeexperiencinganeatingdisorderisbytalkingwiththembutwhenandhowyoudoitmatters.5Approachthemwithloveandcompassionletthemknowthatyoucareaboutthemandthatyounoticethatthereissomethingtheymaybestrugglingwith.A.Thisalsomightcomewithanoticeableweightlossorgain.B.Howeverbeingtrappedinthatdiscussionisadifferentstory.C.Theirfitnessoreatinghabitsareconstantlyoutoftheordinary.D.Moodchangesassociatedwitheatingmayalsobeadangersignal.E.Itshouldbeawayfromthenormalroutineandoutsideofamealtime.F.Somesymptomsofaneatingdisordermaybemorevisibletotheeyes.G.Eatingdisordersareagroupofconditionsmarkedbyanunhealthyrelationshipwithfood.
环戊二烯是重要的有机化工原料广泛用于农药橡胶塑料等生产．回答下列问题 1已知g═g+H2g△H1＝100.3kJ•mol﹣1① H2g+I2g═2HIg△H2＝﹣11.0kJ•mol﹣1② 对于反应g+I2g═g+2HIg③△H3＝kJ•mol﹣1． 2某温度下等物质的量的碘和环戊烯在刚性容器内发生反应③起始总压为105Pa平衡时总压增加了20%环戊烯的转化率为该反应的平衡常数Kp＝Pa．达到平衡后欲增加环戊烯的平衡转化率可采取的措施有填标号． A．通入惰性气体B．提高温度C．增加环戊烯浓度D．增加碘浓度 3环戊二烯容易发生聚合生成二聚体该反应为可逆反应．不同温度下溶液中环戊二烯浓度与反应时间的关系如图所示下列说法正确的是填标号． A．T1＞T2 B．a点的反应速率小于c点的反应速率 C．a点的正反应速率大于b点的逆反应速率 D．b点时二聚体的浓度为0.45mol•L﹣1 4环戊二烯可用于制备二茂铁FeC5H52结构简式为后者广泛应用于航天化工等领域中．二茂铁的电化学制备原理如图所示其中电解液为溶解有溴化钠电解质和环戊二烯的DMF溶液DMF为惰性有机溶剂． 该电解池的阳极为总反应为．电解制备需要在无水条件下进行原因为．
Bootcamp﹣stylefitnessclassesaretakingNewYorkCitybystormandevensoldierssaysomeoftheseexercisesareharderthanthebasictrainingtheyexperienced.Theseclassescondense压缩90daysoftrainingintoanhour﹣longclass.'It'smuchmorechallengeableinthatyoudon'thaveabreak'saysChadVincent37.Soifyouwantaworkoutthatwillhelpyoubeallyoucanbeherearesomegoodchoices:CircuitofChange57W.16thSt.212255﹣0053Thebase:Thisclass﹣foundedbyBrianDelmonicoin2011﹣helpsNewYorkersfindpeaceofmind.Marchingorders:Theone﹣hourfocusdoesn'tmeanyouwon'tsweat.Expectamixofgymnasticsandyogaindoorswhileoutdoorclassesincluderunningandjumpingoverbenchesandasmallwall.WarriorFitnessBootCamp29W.35thSt.212967﹣7977Thebase:Monkeybarsandhangingropesdecoratethisspacewhereacrewoffivenot﹣afraid﹣to﹣shoutinstructorsdohelp.Marchingorders:ThisworkoutmodeledafterrealbootcampsisasauthenticasitgetsaccordingtoformerMarineSgt.海军中士RubenBelliard.'Westaytruetothefactthatthisiswhatwewentthrough'hesays.Classesincludeaseriesof90﹣seconddrillsthatrequireteamworktocomplete.Stacy'sBootCamp646537﹣5466;stacysbootcamp.comThebase:StacyBermanturns17yearsofkickboxingexperienceintoaseriesofoutdoorbootcampsinCentralParkandBatteryPark.Marchingorders:ThreeweeklyclassesstartintheearlymorningaccordingtoLieslMarelli.Uncertaintyisabigpartoftherecipe.'Youdon'tknowwhatshe'sgoingtothrowatyouthatday'saysMarelli.BrickNewYork257W.17thSt.;bricknewyork.comThebase:ThispopularLosAngelesCrossFitgymopenedthismonthandinstructorWillLanierisalreadybeginningtotrainNewYorkerswithbootcamp﹣stylerunsandoutdoorworkouts.Marchingorders:ThelO﹣minutewarm﹣uprunwillfeeleasybeforeLanierstartshis'60﹣minuteworkout.'AlsodifferentformbootcampBrickwillsoonofferyogaclasses.1WhatisspecialaboutStacy'sBootCamp?A.Ithelpstofindinnerpeace.B.Thewarm﹣upactivityiseasy.C.Ithasaveryflexibleschedule.D.Theinstructorsareextremelystrict.2Whichofthefollowingclassesneedsmoreteamspirit?A.WarriorFitnessBootCamp.B.Stacy'sBootCamp.C.CircuitofChange.D.BrickNewYork.3Whatisthepurposeofthetext?A.Toencouragereaderstodomoreindoorexercises.B.Torecommendseveralbootcamp﹣stylefitnessclasses.C.Topersuadereaderstojoinbootcamp﹣stylefitnessclassesD.Tointroducetheadvantagesofbootcamp﹣stylefitnessclasses.
AmongallthetouristattractionsinSydneythemagnificentOperaHouseistheshiningstar.OntheedgeofBennelongPointatongueoflandstickingoutintoSydneyHarborthisUNESCOWorldHeritageSiteconsistsofacomplexofroofsshapedlikehugeshellsorbillowingsailsthatmixbeautifullywithitswaterfrontlocation.Todayvisitorscanadmirethegreatbeautyofthebuilding.Muchmorethananoperahousethestructureencompasses包含theatersstudiosaconcerthallrehearsalandreceptionroomsrestaurantsandaspectacularopen﹣airforecourtoverlookingtheharborandcity.AmericanarchitectLouisKahnoncesaid'Thesundidnotknowhowbeautifulitslightwasuntilitwasreflectedoffthisbuilding.'TipsandTacticsBookseatsforproductionswellinadvance.Performancescommencepromptlysovisitorsshouldallowenoughtimetoaccessthebuildingcollectticketsandstowcloakslargebagsandjackets.Considerenjoyingamealinoneoftherestaurantstoenjoythestunningharborviews.OneofthebestsitestophotographtheOperaHouseisMrs.Macquarie'sChairintheRoyalBotanicGardensorfromthewateraboardaharborcruise.GettingtotheSydneyOperaHouseVisitorscancatchaSydneyBustravelbyCityRailorhopaboardaSydneyFerrytoCircularQuaywhichisa5to7minutewalkfromtheSydneyOperaHouse.Afreeshuttlebusforelderlyandmobility﹣challengedpatrons顾客runsbetweenCircularQuaynearStandEundertheCahillExpresswayandtheVehicleConcourse.BikeparkingisavailableundertheSydneyOperaHouseMonumentalSteps.Wilson'sSydneyOperaHouseCarParkislocatedat2MacquarieStwithvehicleaccessnexttotheSydneyOperaHouseForecourt.Admission:Ticketpricesvaryfromattractiontoattraction.Location:BennelongPointSydney.1WhichofthecharacteristicsofSydneyOperaHousemightattractvisitorsmost?A.Itshistoricalcontext.B.Itsuniquearchitecture.C.Itswaterfrontlocation.D.Itssuperbharborviews.2IfyouareavisitortoSydneyOperaHouseyoucan.A.takeaferrydirectlytoSydneyOperaHouseB.rideafreeshuttlebuswithoutanyrestrictionsC.takeanequallygoodphotofromanyangleD.driveacarto2MacquarieStandparkthere
Hotshotjetpilotsarenomatchforcliffswallows.ThebirdsrocketoverbridgesandskimoverlakesrushingforwardataccelerationsthatwouldknockanAirForce.Bytrackingthesecontestswithhigh﹣speedcamerasanewstudygivesthefirstin﹣depthpeekintoavianaerodynamics鸟类空气力学inthewild.'Thefindingsmayevenprovideinsightintohowtodesignbettermicroairvehicles﹣tinydrones.Thistechnologywillbebrilliantlyuseful'saysbiomechanicsexpertJimUsherwoodoftheUnitedKingdom'sRoyalVeterinaryCollegeinHatfield..'High﹣resolutionfieldstudieslikethishaveneverbeendonebeforeforbirds.'ForcliffswallowsthetroublestartswhentheyreturnfromwinteringinSouthAmericatotheirsummerhomesinNorthAmerica.Afterarrivaltheyseekouttheiroldmudnests﹣usuallylocatedunderconcretebridgesandfreeways﹣andstartrebuildingtheirhomes.Butratherthanhuntdownafreshsupplyofmudsomeswallowspreferstealingsuppliesfromtheirmorehardworkingneighbors.Otherstakethingsfurtherandwillevenlayaneggortwointheirneighbor'snestbeforetakingoff.Battlesintheairfollowiftheinvadersarecaughtintheactandanewstudytakesadvantageofthesefightstolearnhowbirdsperformhigh﹣speedmaneuvers演习.TheteamplacedthreecamerasalongaNorthCarolinalakecrossedbyahighwaybridgethathousesseveralcliffswallownestsandwaitedforthebattlestocommence.Theteamwassurprisedtolearnthatmostofthetime*chaserscopiedthemoveoffleeinginvaders.Swallowsalsopullveryhardturnstoescapeanenemy*withoneextremecasereaching＝7.8gravity.Fighterpilotsusuallypassoutatabout5or6gravitywhichiswhytheseexperimentshaveearnedinterestandpartialfundingfromtheOfficeofNavalResearch.TheNavymayusethefindingstobuildbetterguidancesystemsformicroairvehicles.Howevertheswallowsbiomechanicsarecomplexandnowtheteamissimplytryingtocollectafewtricks.1WhydidtheUsherwoodcarryoutthestudies?A.Toguideabetterdesignofairvehicles.B.Toprovetheswallowsarebetteratflying.C.Toexperimentwithitshigh﹣speedcameras.D.Totrackhowtheswallowsskimoverlakes.2Whatleadstothebattlesamongthebirds?A.Sharingfood.B.Occupyingothers'nests.C.Seizingmudfornesting.D.Competingfortheuseofbridges.3Whichcanbestreplacetheunderlinedword'commence'inparagraph3?A.continueB.accelerateC.endD.begin4Whatisthetrickoftheswallowtoescapeitsenemy?A.Acceleratingtowardit.B.Copyingwhatitsenemydo.C.MakingsharpturnsduringflightD.Seekingforhelpfromitsfellows.
Thewaypeopleholdtothebeliefthatafun﹣filledpain﹣freelifeequalshappinessactuallyreducestheirchancesofeverattainingrealhappiness.Iffunandpleasureareequaltohappinessthenpainmustbeequaltounhappiness.Butinfacttheoppositeistrue:moreoftenthannotthingsthatleadtohappinessinvolvesomepain.Asaresultmanypeopleavoidtheveryattemptsthatarethesourceoftruehappiness.Theyfearthepaininevitablybroughtbysuchthingsasmarriageraisingchildrenprofessionalachievementreligiouscommitmentselfimprovement.Askabachelorwhyheresistsmarriageeventhoughhefindsdatingtobelessandlesssatisfying.Ifheishonesthewilltellyouthatheisafraidofmakingacommitment.Forcommitmentisinfactquitepainful.Thesinglelifeisfilledwithfunadventureexcitement.Marriagehassuchmomentsbuttheyarenotitsmostdistinguishingfeatures.Coupleswithinfantchildrenareluckytogetawholenight'ssleeporthree﹣dayvacation.Idon'tknowanyparentwhowouldchoosethewordfuntodescriberaisingchildren.Butcoupleswhodecidenottohavechildrenneverknowthejoysofwatchingachildgrowuporofplayingwithagrandchild.Understandingandacceptingthattruehappinesshasnothingtodowithfunisoneofthemostliberatingrealizations.Itliberatestime:nowwecandevotemorehourstoactivitiesthatcangenuinelyincreaseourhappiness.Itliberatesmoney:buyingthatnewcarorthosefancyclothesthatwilldonothingtoincreaseourhappinessnowseemspointless.Anditliberatesusfromenvy:wenowunderstandthatallthosewhoarealwayshavingsomuchfunactuallymaynotbehappyatall.1Accordingtotheauthorabachelorresistsmarriagechieflybecause.A.heisreluctanttotakeonfamilyresponsibilitiesB.hebelievesthatlifewillbemorecheerfulifheremainssingleC.hefindsmorefunindatingthaninmarriageD.hefearsitwillputanendtoallhisfunadventureandexcitement2Raisingchildrenintheauthor'sopinionis.A.amoraldutyB.arewardingtaskC.athanklessjobD.asourceofinevitablepain3Fromthelastparagraphwelearnthatenvysometimesstemsfrom.A.HatredB.misunderstandingC.PrejudiceD.ignorance4Whatistheauthortryingtotellus?A.Happinessoftengoeshandinhandwithpain.B.Onemustknowhowtoattainhappiness.C.Itisimportanttomakecommitments.D.Itispainthatleadstohappiness.
分子式为C4H8BrCl的有机物共有不含立体异构
Thoughourfootballboysarefacedwithfourgoalsbehindtheyarestillstrugglinghardinthefieldto. A.facethemusic B.saveface C.costtheirarmandleg D.landontheirfeet
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. MycousinLiMingtoldmehewouldbetakinghisdriver'stestagain.Heseemedconfidencealthoughhehavefailedhisfirstroadtest.Ifeltsympathyforhimthinkhemighthaveasamefearhedidlasttime.IencouragedhimthoughIwasnotsooptimisticabouttheirchances.Lateronhecalledsharethegoodnewsthathehadpassedit.Beforetheroadtestourfamilygatheredexcitedathishouse.Icongratulatedhimwithahug.Iaskedhimtodrivewithmeanywhereheliked.ThreeofourcousinpiledinwithusandwetookourfirstridewithLiMing.
Officefurniturelikechairsandsofasshouldbeattractiveaswellascomfortable. A.manually B.visually C.physically D.securely
﹣IsitenoughtofinishtheformforapassportMadam? ﹣Yourpassportapplicationformshouldbebytworecentphotos. A.updated B.accompanied C.established D.identified
Arecentstudyfoundthatpeoplewholiveincolderclimatesconsume1muchalcoholthanpeoplewholiveinwarmweather.'Alcoholissomethingthateveryonethoughtharmfulfor2decadebutnoonehasscientificallydemonstratedit'aprofessorwroteinapressrelease.WhydopeopleinRussiadrinksomuch?Everybody3assumethat'sbecausetheweatheriscold.Butwecouldn'tfindasinglepaper4linkclimatetoalcoholintake.Sincealcoholcouldincreasewarmbloodflowintheskinlastmonththeresearchersinastudy5suggestthatpeopleshouldreachforbooze豪饮whenit'scoldoutside.Theresearcherscombedthroughdatatocompareclimatefactorsandalcoholconsumptionpercapita每人的.6studyalsofoundthatastemperaturesandsunlighthoursdecreasealcoholconsumptiongoesup.Shorterhoursofsunlightandcoolertemperaturesalsorelate7higherratesofdepression8islinkedtoanincreaseindrinking.Theprofessorhopesthisdatawillhelpinfluencehealthpoliciesonalcoholabuse.'Knowingthatcolderplaceshavemoredrink﹣relatedproblemscouldbe9helptotheeffortsintheseareas10determinebetterpolicies'hesaid.
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