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有两组扑克牌各三张，牌面数字均为1，2，3，随意从每组牌中各抽一张，数字之和等于4的概率是（ ）
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有两组扑克牌各三张牌面数字均为123随意从每组牌中各抽一张数字之和等于4的概率是
从一副扑克牌中取出的两组牌一组为黑桃123另一组为方块123分别随机地从这两组牌中各摸出一张那么摸
从一副扑克牌中取出的两组牌如图所示第一组牌是红桃123第二组牌是方块123．将它们分别重新洗匀后背
有两组扑克牌各三张牌面数字分别为123随意从每组牌中抽取一张数字和是奇数的概率是
甲乙两人玩抽扑克牌游戏游戏规则是从牌面数字分别为567的三张扑克牌中随机抽取一张放回后再随机抽取一张
甲乙两人玩抽扑克牌游戏游戏规则是从牌面数字分别为567的三张扑克牌中随机抽取一张放回后再随机抽取一张
有两组扑克牌各三张牌面数字均为123．若随机从每组中各抽一张求所抽取的两张牌的牌面数字之和是偶数的
将如图所示的A.B.两组扑克牌分别洗匀后背面朝上放置在桌面上.若分别从A.B.两组牌中各随机抽取1张
从一副扑克牌中取出两组牌其中一组是黑桃A算12345另一组是方块A2345将两组扑克的背面朝上分别
甲乙两人玩扑克牌游戏游戏规则是从牌面数字分别为567的三张扑克牌中随机抽取一张放回后再随机抽取一张若
从一副扑克牌中取出的两组牌第一组牌是红桃234第二组牌是方块23．将它们分别重新洗匀后背面朝上放置
有两组扑克牌各三张牌面数字分别为123随意从每组牌中抽取一张数字和是奇数的概率是
现有一副扑克牌中的三张牌牌面数字分别为345．将这三张扑克牌背面向上洗匀从中随机抽取一张记录数字后
从一副扑克牌中选取的两组牌分别是红桃123和方块123将他们的背面朝上分别重心洗牌后再从两组牌中分别
有两组扑克牌各三张牌面数字分别为234随意从每组牌中抽取一张数字和是6的概率是．
如图一二现有两组扑克牌每组3张扑克第一组分别是红桃5红桃6红桃7第二组分别是梅花3梅花4梅花5.1现
准备两组相同的牌每组三张大小一样三张牌的牌面数字分别为﹣101.从每组中各模出一张牌.1两张牌的牌面
如图一二现有两组扑克牌每组3张扑克第一组分别是红桃5红桃6红桃7第二组分别是梅花3梅花4梅花5.1现
甲乙两人玩扑克牌游戏游戏规则是从牌面数字分别为567的三张扑克牌中随机抽取一张放回后再随机抽取一张若
有两组扑克牌各三张牌面数字分别都是123随意从每组中个抽出一张．数字和是偶数的概率是．
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假定你是李华校学生会论感你校拟向一所在美国的姐妹学校图书馆捐赠一批中国经典文学图书以供该校学生阅读.请你给该校负责人写一封邮件内容如下: 1.自我介绍: 2.介绍这批书籍 注意: 1.词数100左右: 2.可适当增加细节以使行文连贯; 3.信的开头和结尾已给出不计入总词数. DearSir/Madam Yoursfaithfully LiHua
Beingyoungisassociatedwithallthegoodthingsinlife﹣beautyhopeandenergy.Butyouthalsohasnegativeassociations﹣impulsivenesstrouble﹣makingandirresponsibility.Thisnegativesideseemstobewhatsocietyfocusesonmorewhichiswhyyoungpeoplehavemostlybeenconsideredasidleanddifficult. ButwhenitcomestoGenerationZ﹣thosebornbetween1996and2010﹣thisstereotypedoesn'tseemtoapplyanymore. InJapanforexampleGenZ﹣ersarelesslikelytobuyonimpulsebuttakeintoconsiderationmoreaproduct'struevalue.They'relookingatthecompaniesnotjusttheproductsMasahikoUotaniCEOofJapanesecosmeticscompanyShiseidotoldBloomberg.They'reasking'AretheyreallydeliveringvaluetothesocietyAretheypromotingdiversityandinclusion GenZ﹣ersarealsomoregroundedthanwe'veexpectedthemtobe.AccordingtoarecentsurveybyBankofAmericamorethanhalfofyoungadultsagedbetween18and23saidtheywereplanningtobuyahousewithinfiveyears.Andthey'renotjustsayingit﹣theyarewillingtomakesacrificesforitincludinggettingasecondjobandsavingmoneyfordownpaymentinsteadofspendingitonavacation. DespitetheiryoungagethisgroupispragmaticandactivelyplanningfortheirfutureD.SteveBolandheadofConsumerLendingatBankofAmericatoldUSAToday.Theyhaveaclearvisionhowtheyarewillingtohelpthemselvesinordertomakeithappen. SocialissuesarealsoatthecenterofconcernofGenZ﹣erswhotakethemselvesasachangingforceoftheworld.InIndiaforexampleyoungpeoplewhohavejustreachedthevotingageareeagertovoteforanewleaderwhoiscapableofsolvingproblemsthatmatterthemosttothemincludingpollutionunemploymentandwomen'ssafety. AsaGen﹣Zeryourselfwhatisyourplanforthefuture 1Whatdotheunderlinedwordsthisstereotypeinparagraph2referto A.Beingyoungisgood. B.GenZ﹣ersarebornafter1996. C.Thetraditionalpoorimpressionsontheyouth. D.Theassociationswithyoungpeople. 2Wecaninferfromthethirdparagraphthat. A.GenZ﹣ersinJapanarepicky B.TheGenZ﹣ersareself﹣centered C.TheGenZ﹣erscarelittleaboutproducts D.TheGenZ﹣ersarewisewhenshopping 3What'sSteveBoland'sattitudetotheGenZ﹣ers A.Approving. B.Negative. C.Indifferent. D.Critical 4WhichofthefollowingwordsmaybestdescribetheGenZ﹣era A.Confidentandindependent. B.Visionaryandresponsible. C.Persistentanddown﹣to﹣earth. D.Activeandcreative.
圆锥的母线长为8cm底面半径为6cm则圆锥的侧面积是
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如图是三个反比例函数y＝y＝y＝在x轴上方的图象由此观察k1k2k3的大小关系为
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△ABC中∠C＝90°BC＝12AB＝13那么sinA的值等于
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Whenyoufallgetupagainisalessoneveryparenthopestheirchildwilllearn.ButnoonecouldhaveshowedthisbeerthanBaileyMatthewsfromNottinghamshireEngland.Despitehavingcerebralpalsyaconditionthatlimitsbodymovementandmuscledevelopmentthe8﹣year﹣oldcrossedthefinishlineatatriathlon铁人三项赛withouthiswalkerlastSaturday. Diagnosed诊断withcerebralpalsyat18monthsBaileybecameinterestedintakingonatriathlonwhenhisdadJonathanMatthewsstartedpushinghimarounda5﹣kmcourseataweeklyparkrunevent.JonathanthenadaptedawalkingframesoBaileywhoneedsregularphysicaltreatmenttohelpwithhismobilitycouldgetroundthecoursehimself.SoonafterBaileyexpressedhiswishtotakeonatriathlonandbegantrainingonaspecialbikeandswimminginalake. Althoughhetrippedandfellafewtimesheimmediatelypickedhimselfbackupandmadeittotheendwithhisfatherrollingthewalkerbehindhim.Themostinspiringmomentcameafterhehadalreadycompleteda100﹣meterswima4000﹣meterbikerideanda130﹣meterrun.Hediscardedhisspecially﹣adaptedwalkingframetofinishthelast20metersoftheraceunaidedbringingthecrowdtotears.HundredsofaudiencecheeredBaileyouttothefinishlinebuthisbiggestfansweremostdefinitelyhisparents. Hehasalwaysstruggledwiththingsthatparentsofotherchildrentakeforgrantedbutheneverletsitbotherhim.Hedoesn'tseehimselfasdifferenttoanyoneelse.Ifhewantstodosomethinghewillfindawaytodoitevenifitisnottheconventionalway.WehavealwaystriedtomakesurethatifthereissomethinghewantstodothereisnosuchwordasCAN'TsayshismotherJulieHardcastle. 1WhatdoweknowaboutBaileyMatthews A.HewasthebeststudentinNottinghamshire B.Hefullyrecoveredafterhetookpartinatriathlon. C.Hewasencouragedbyhisdoctortobecomeatriathlon. D.Hefinishedatriathlonregardlessofphysicalrestrictions. 2WhichofthefollowingbestexplainsdiscardedunderlinedinParagraph3 A.Reliedon B.Threwaway C.Toredown D.Fixedup 3HowdoesJulieHardcastlefeelaboutherson A.Sheisproud B.Sheisgrateful C.Sheissympathetic D.Sheisdisappointed. 4Whatcanbeasuitabletitleforthetext A.Parents'Love B.StrongFamilyTies C.AnInspiringTriathlonFinish D.ALonelyStruggleAgainstMisfortune
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GardenerssuchasPrinceCharleswhoclaimthattalkingtoplantsencouragesthemtogrowhavelongbeenseenasalittlesilly.ButscientistshavediscoveredevidencewhichsuggeststheRoyalmayactuallyberightandtheycouldbelisteningtohim.BiologistsatTelAvivUniversityinIsraelhavefoundthatflowerscanactasaplant'searstohelpthemdetectthesoundofapproachinginsects. Whentheresearchersplayedrecordingsofflyingbeestoeveningprimroseflowerswithinthreeminutesthesugarconcentrationsinthenectar花蜜ofitsflowersincreased.Thefluidproducedtoattractpollinating授粉insectswasonaverage20percenthigherinflowersexposedtothebuzzcomparedtothoseleftinsilenceorexposedtohigherpitchedsounds.ProfessorLilachHadanywholedthestudysaid:Ourresultsdocumentforthefirsttimethatplantscanrapidlyrespondtopollinatorsoundsinanecologicallyrelevantway. HoweverProfHadanysaidaplant'sabilitytorespondtopollinatorsmaybeweakenedincityenvironmentsorbesideabusyroad.Whileplantsrequirewatersunlightandtherighttemperaturetogrowitiswidelybelievedtheydonothavesensesinthewayanimalsdo. Butthestudypublishedontheopen﹣sciencewebsiteBioRxivsuggeststheeffortsofgardenerswhotalktotheirplantsmaynotbeinvain.Plants'abilitytohearhasimplicationswellbeyondpollination﹣plantscouldpotentiallyhearandrespondtoherbivoresotheranimalstheelementsandpossiblyotherplantsProfHadanyadded. Amonth﹣longexperimentconductedbytheRoyalHorticulturalSocietyin2009foundfemalevoicesappeartospeedupthegrowthoftomatoes.Theresearchoffersapossibleexplanation﹣women'svoiceswereattherightfrequencyfortheplantstohear. 1What'seveningprimroseflowers'responsetobees'buzz A.Longerbloom. B.Sweeternectar. C.Brightercolor. D.Lessfluid. 2WherecanplantsgrowbetteraccordingtoHadany A.Onasquare. B.Besideahighway. C.Inthewoods. D.Alongthestreet. 3Whatcanweinferfromtheresearch A.PrinceCharlesproveskindofstupid. B.Plantscanonlypotentiallyhearanimals. C.Plantsrespondtosoundsslowlyandecologically. D.Plantsgardenerstalktofrequentlydevelopwell. 4Whatdoesthetextmainlytalkabout A.Flowerscanhear. B.Beesarebestpollinators. C.Plantscan'tgrowwithoutsound. D.Women'svoicesimproveplants'growth.
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. Theworldseemstobefacingtwoproblem.Oneisthattoomanypeoplearedangerousover﹣weighted.Thistypeofproblemcalledobesity肥胖症.Obesityiswhenapersonhavemorethan25﹣30percentofbodyfat.Theotherproblemisaillnesscalledanorexia厌食症.Thisiswhenpeoplearedangerouslythinwearelessthan85%oftheirnormalbodyweight.Alloftheseproblemsareveryseriousbecauseofthebodycannotworkproperlywhenitistoofatortoothin.Theheartliverkidneysandlungswillnotbeabletokeepthebodyhealth. Peoplecandiefromillnessescausingbybeingtoofatortoothin.
It'softensaidthatyourparents'jobistomakesurethatonedayyounolongerneedthem.Andthat'scertainlythecasebythetimeyouhavekidsofyourown.Howeverthisispreciselythetimewhenyourparentsstarttoneedyou.Howdoyoutalktoyouragingparentsabouttheirhealth1butthesetipsmakeiteasier. Beforeaconversationyouhadbetterestablishyourselfasafriendnotanenemy.AlwaysstartwithanIstatementnotayoushouldstatement.2. Scientistsrecommendbeginningaconversationaboutsomethingyou'redoing﹣takingupyogatostayslimforinstance.3.Andyoucanevenhavehercommittodoingitwithyou.Whenyou'reafriendday﹣to﹣dayyourparentswilltrustyouandbeabletodependonyouduringahealthcrisis. 4.Startbyequippingthemwithasmartphonethat'sdesignedforseniors.Stayinginclosephonecontactwillkeepyouinformedofanyarisinghealthissues.Itwillhelpyoupickuponfaultsintheirmemorytoo. Yourparentsareyourparentsuntilthey'regone.Donottreatthemlikechildren.Evenifyoufindthatthere'sanemergencygoingonyoucanmakesuggestionsbuttheyhavetherighttomakedecisionsespeciallyifthere'snocognitive认知的disorder.5helpingyourparentsintheirlateryearsistheleastyoucando.Withthepropermeasuresandtechnologyitcangeteasierandfeelevenmorerewarding. A.Justastheyhavebeenthereforyou B.Itmaynotbeasimpleconversationtohave C.Itcanmeanchangesinyourparents'schedule D.Scientistsalsosuggestsphoningyourparentsregularly E.Thatcanleadtoaskingyourmomwhatshe'sdoingtokeepfit F.Talkaboutaffairsaboutyourselffirstthenextendthemtoyourparents G.Scientistsrecommendopeningthedoortodialogueinsteadofcallingthem
如图1是一块长为60cm的正方体薄铁片制作的一个长方体盒子如果要做一个没有盖的长方体盒子可先在薄铁片的四个角上截去四个相同的小正方形如图2然后把四边折合起来． 1求做成的盒子底面积ycm2与截去小正方形边长xcm2之间的函数关系式 2当做成的盒子的底面积为900cm2时试求该盒子的容积．
小明的身高为1.8米某一时刻他在阳光下的影长为2米与他邻近的一棵树的影长为6米则这棵树的高为
WhenyouthinkbacktotheblackboardfromyourschooldayswhatcolorisitChancesarethatit'sgreen.Sowhat'supwiththenameOriginallyblackboardswerereallyblack.Beforewall﹣sizedblackboardsexistedlate18th﹣centurystudentsusedtheirownminiboardsmadeofslate石板orpaintedwoodaccordingtoConcordiaUniversityThosefirstboardswereinfact.blackandtheypavedthewayforthelargerones. In1800whenaScottishheadmasternamedJamesPillanswantedhisstudentstodrawmapsthestudentscouldn'tdrawthemapstheirteacherwantedontheirtinyboardssoPillansputseveralslatestogethertocreatealargeboard.Problemsolved!Fromtheretheideaspreadquicklyasteacherscouldfinallyshowaconcepttothewholeclassatonetime.By1815themassivewritingspaceswerecommonenoughtoearntheirownname:blackboard. Thecolorchangecameinthe1960swhencompaniessoldsteelplatescoatedwithgreenenamel漆insteadofthetraditionaldarkslate.Thenewmaterialwaslighterandlessfragilethanthefirstblackboardssotheywerecheapertoshipandmorelikelytosurvivethejourney.Teachersweren'tcomplainingeither.Afterallthenewgreenboardsmadethechalkpowdereasiertoerase.Plustheenamelleftlessofaglareandthecolorwasnicertolookat.Atthatpointpeoplestartedusingthewordchalkboardasamoreaccuratedescriptorbutblackboardstillstuckaround. 1Whatdidthelate18th﹣centurystudentsuseinclass A.Blackboard. B.Chalkboard. C.Greenboard. D.Miniboard. 2Whydidtheheadmasteraskthestudentstoputtheirminiboardstogether A.Tomakeacomparison. B.Tomakeenoughspace. C.Todrawstudents'attention. D.Toarousestudents'interest. 3WhichofthefollowingisNOTtheadvantageofthegreenboard A.They'relighterinweight. B.They'remoreconvenienttotransport. C.Theyreeasiertoerasethepowder. D.They'remoreusefulthanthetraditionalones. 4What'sthemainideaofthetext A.Introductionoftheblackboard. B.Originoftheblackboard. C.Coloroftheblackboard. D.Functionoftheblackboard.
计算0+﹣1﹣﹣|﹣1|．
TodayMountQomolangma'speakisnotalonelyplaceanymore.Over3500peoplehave1successfulclimbedthemountainoverthepastyear.Meanwhileclimbershavecomplainedabout2waitforhoursinthebottlenecks. Infactthedangerous3crowdaren'ttheonlyproblem.Allthoseclimbersneed4bringalotofgear装置andmuchofthemendsupbeingleftonthemountains.becomingtheworld's5tallrubbishdump. Butthegoodnewsis6somemountaineersareovertakingittocleanupQomolangma.MountaineersPaulandEberhardarepartofEcoEverestExpeditionwhichhasbeencleaninguprubbishsince2008.Sofarthey7collectover13tonsofgarbage. Someofthatrubbishisevenbeingusedfor8higherpurpose.AspartoftheMountEverest8844ArtProject.agroupof15artistsNepalcollected1.5tonsofgarbage.They'vechangedthecansandoxygentanksinto74pieceofartthathaveareexhibited9Nepal'scapital.Partoftheprofitfromsales10beavailablefortheEverestPakeersAssociationwhichhashelpedolerubbishofthemountain.
甲骑自行车乙骑摩托沿相同路线由A地到B地行驶过程中路程与时间的函数关系的图象如图所示．根据图象可知 ①先出发的是填“甲”或“乙” ②甲的行驶速度是公里/分 ③乙的行驶速度是公里/分
Chinesedoubleamputee截肢climberXiaBoyureceivedthemostvotes1globaltobecomethe2019LaureusSportingMomentoftheYearwinneronMonday. Xiacameoutfromaninitiallistof10nomineesbeforethreefinalistsweremade2knowtothepublicearlierthismonth. Xiahadlostbothhislegsin1975duringhisfirstattempttoreach3world'shighestpeakofQomolangmaduetofrostbite.Hechallengedthesummitin20142015and20164 wellbuthisdreams5breakowingtoavalancheearthquakeandbadweatherrespectively. Xiafinallymade6inhisfifthattemptonMay142018becomingthefirstChinesedoubleamputeeclimber7reachthesummitofQomolangma. ClimbingtothesummitofQomolangmaisalwaysadreamandgoalforme.I8fightforitoverthepastdecades.DespitebadknocksseveraltimesInevergaveup.Ithinkthedeterminationmademylifesocolorfuland9meaningXiatoldChinesemedia. Xiaaddedthathisnextgoalwillbe7+2namelythehighestsummitsofseven10continentplustheSouthPoleandNorthpole.
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. LastsummervacationIworkedasavolunteerintheWolongChinaGiantPandaGardeninSichuanwhereIstayfortwoweeks.ThatIneededtodowastocleanthepandas'housesfeedthepandasormakefoodforthem.OnemalepandaItookcarewasnamedJingjing.ShewasoneofthemostinterestedpandasintheGarden.NormallythepandaisashycreaturenotusedtobeincontactwithotheranimalsparticularlyhumansbutJingjingseemedverydifferently.Heoftenreachedoutoneofhisfoottogreetmeandsmiledatme.Sometimeshetriedtomakemetolaugh.
Examplesofeffectiveconservationofplacesmattertotheworld.Theyrangefromthe1960sNubiancampaigntosafeguardAncientEgyptianmonumentsfromthewatersoftheAswanDamtotheremovalin2018oftheBelizeBarrierReeffromtheListofWorldHeritageinDanger.ConservationisthecorepurposeoftheWorldHeritageConventionanditmayalsobeitsbiggestchallenge. Thefollowingexampleshowshowsuccessesatspecificsitesnowserveasmodelsforconservationandsustainable可持续性development.AyearafterViennawasincludedontheWorldHeritageListin2001theWorldHeritageCommitteeWHCexpressedconcernsaboutthearchitecturalsolutionsandheightoffourplannedtowersoftheWien﹣Mitteproject.ThisdevelopmentprojectclosetotheHistoricCentreofViennainthesite'sbufferzonetheonethatliesbetweentwoormoreotherareasaffectedtheurbanscale规模andvisualeffectsinandaroundtheproperty地产.AsaresultoftheCommittee'sconcernsViennachangeditsbuildingcodesandlaunchedanewdesigncompetitionfortheWien﹣MitteprojecttoworkoutarchitecturalplanswithreducedsizeinkeepingwithWorldHeritageprotection. Thesuccessfulpracticeinspiredthegovernmentofthecitytoinviteover600expertsandprofessionalsfrom55countriestoaninternationalconferenceonWorldHeritageandcontemporaryarchitectureheldinViennainMay2005.TheglobaldiscussionthatfolloweddetailinganapproachtomanagingconservationanddevelopmentwasrecordedintheUNESCORecommendationin2011. TheRecommendationputforwardsanall﹣roundedandcombinedapproachtobalancingurbanheritage遗产conservationandeconomicdevelopmentarguingthatactiveprotectionandmanagementofurbanheritagesupportsthegoalofsustainabledevelopment. TheRecommendationsupportstheharmoniouscombinationofcontemporaryinvolvementintothehistoricurbanframeworkwhileholdingontovalueslinkedtohistorymemoryandtheenvironment. 1WhydoestheauthormentiontheBelizeBarrierReefinParagraph1 A.Toexplainthegoaloftheorganization B.Toencouragethepublictoprotecttheworld C.Toshowthepositiveeffectofconservation. D.Toremindpeopleoftheenvironmentalproblems. 2WhywasWHCworriedabouttheWien﹣Mitteproject A.Ittookuptoomuchpubliclandofthecity. B.IthadabadeffectontheHistoricCentreofVienna C.Itsoriginaldesignswerenotenvironmentallyfriendly. D.Itsarchitecturalsolutionscouldn'tmeetsafetystandards 3Whatdidtheglobaldiscussionfocuson A.Thewaystocombineconservationanddevelopment. B.ThecreationofthenewUNESCORecommendation C.Theinternationalurbanmanagementanddevelopment. D.ThestylesofthecontemporaryarchitectureofVienna. 4Whatistheauthor'spurposeinwritingthetext A.Toexaminethechallengesfacedbyglobalurbanplanners. B.Tointroducealternativewaysofprotectingtheenvironment. C.Tostresstheimportanceofthevalueofhistoryandmemory. D.Topromoteactiveconservationandsustainabledevelopment.
假定你是红星中学的李华你的英国朋友Peter热爱体育运动他将作为交换生到你校学习一年.请你给他写封邮件主要内容包括: 1.介绍你校体育课程及活动; 2.推荐一项中国传统体育项目. 注意:1.词数100左右; 2.可以适当增加细节以使行文连贯.
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