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“烧饼夹里脊”是蚌埠市著名的传统小吃，顾名思义就是由烧饼、里脊肉、蚝油、甜、辣酱料等组合而成的一种小吃．烧饼夹里脊配料里缺乏的一种营养素是（ ）
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轻纺产品顾名思义就是玩具与纺织品两大类生活资料产品
顾名思义季风就是季节性的风如春季为春季风夏季为夏季风等
顾名思义所有植物线虫均为线形
绘图区顾名思义就是用户进行图像编辑的区域
棉铃虫顾名思义就是只为害棉花花铃的害虫
财务公司顾名思义就是一个企业管理财务的部门
轻纺产品顾名思义就是玩具与纺织-两大类生活资料产品
店招顾名思义就是店铺的招牌
带钢涂后印花顾名思义是
一砖墙顾名思义就是厚度为一块标准砖的墙请问一砖墙厚度是毫米
串珠顾名思义就是将不同形状不同种类的串连在一起制作成各种各样的
融资策划顾名思义融资就是融入资金融资策划就是制定企业获取或借助资金的新方案
缺货顾名思义就是库存产品不能满足客户需求时出现的货物短缺
顾名思义gùmíngsīyì
增湿塔顾名思义就是增加工艺气中的水汽以利于增加工艺气中的水含量
舞蹈顾名思义是由与所构成由此也构成了传统舞蹈中东方舞蹈以为主西方舞蹈以为重的特点
一次凭证顾名思义就是只用一次的凭证
校对－－顾名思义就是
校正与核对
校正
核对
校错
兴中会顾名思义就是的意思
恢复中华
振兴中华
光复中华
联络华侨
顾名思义万能材料试验机就是什么力学性能试验都可以在这台及其上完成
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设函数fx=． 1求f-1f0f2的值 2求不等式fx≤2的解集．
Herattractivelipsseemedtospeakwordsofkindnesswhilehereyesappearedtoseek寻找outthegoodinpeople.Youhavetwohandsoneforhelpingyourselftheotherforhelpingothers.Sheusedtosay. ItwasforthisrarecharmandinnerbeautythatBritishmoviestarAudreyHepburn1929﹣1993wasnamedthemostnaturallybeautifulwomanofalltimeinJune2004. Herskinlooksfreshinallherfilmsandherwarmandlivelypersonalityreallyshinesthroughsaidonebeautyexpert. LifewasnevereasyforHepburn.Shortlyafterherparents'painfuldivorcewhenshewasnineshefoundherselfintheNetherlandsatthestartofWorldWarII.Hepburnwatchedhelplesslyasseveralofherrelativeswerekilled.Shesurvivedbyeatingtulipbulbsandcarriedsecretmessagesfortheresistanceinherballetshoes. Shedreamedofbecomingaballetdancerbutwastoldshewastootallandnottalentedenoughtobeasuccess. Hepburnthenturnedtomusicalsandspentmostofhertimeasachorusgirl舞女.ShehadsomesmallmovierolesbutitwasnotuntilRomanHoliday1953thatshebecameastar.WithhergoodmannersanddelicatefigureshewasperfectintheroleofaEuropeanprincess.ShetooktheBestActressOscarforherperformance. In1988Hepburnbeganhermostimportantrole﹣asaGoodwillAmbassador大使forUNICEFUnitedNationsChildren'sFund.Shetraveledtothepoorestplacesdoingherbesttoprovidecareandcreateawarenessofthedifficultsituationsinwhichsomechildrenlive. WhenHepburnpassedawayamessagedisplayedatherfuneralreadInlosingAudreytheworldnotonlylostamoviestarwelostaprincessanangelapersonwhoinspiredusallandwhoseselflessandlovingexamplesshallalwaysberemembered. 1WhenHepburnbegantoactasaGoodwillAmbassadorforUNICEFhowmanyyearshadpassedsinceherparents'divorce? A.50 B.52 C.38 D.46 2Whatisthepurposeofthelastparagraph? A.TotellreadersaboutAudreyHepburn'sdeath. B.TothinkhighlyofAudreyHepburn'swholelife. C.TotellreadersthemessagedisplayedatAudreyHepburn'sfuneral. D.TosaygoodbyetoAudreyHepburn. 3WhichofthefollowingbestdescribesAudreyHepburn'slife? A.Difficultandlucky. B.Miserableandsmooth. C.Hardandsuccessful. D.Easyandsmooth. 4Whatwouldbethebesttitleforthepassage? A.BeautyIsNotJustSkinDeep. B.BeautyIsJustSkinDeep. C.BeautyNeverStaysForever. D.AWorld﹣famousBeautyexpert
已知函数y=x-|lnx|的两个零点为x1x2且x1＞x2则
在平面直角坐标系中直线l的参数方程为其中t为参数．现以坐标原点为极点x轴的非负半轴为极轴建立极坐标系曲线C的极坐标方程为ρ=6cosθ． 1写出直线l的普通方程和曲线C的直角坐标方程 2若点P坐标为-10直线l交曲线C于AB两点求|PA|+|PB|的值．
Somepeoplesaythetraditionalcalendarof180daysnolongermeetstheneedsofAmericansociety.Theypointoutthatstudentsinmostotherindustrialcountriesareinschoolmorehoursadayandmoredaysayear.Criticsalsosayalongsummervacationcausesstudentstoforgetmuchofwhattheylearned.Schoolsareunderpressuretoraisetestscores.Somehavechangedtheircalendarstotrytoimprovestudentperformance.Theyhavelengthenedtheschooldayoraddeddaystotheyearorboth.Thiscanbecostlyifschoolsneedairconditioningonhotdaysandschoolemployeesneedtobepaidfortheextratime. Someschoolshaveayear﹣roundschedule.Theschoolyearisextendedovertwelvemonths.Insteadofalongvacationtherearemanyshortones.Localbusinessesmayobjecttoalongerschoolyearbecausestudentsareunabletoworkaslongatsummerjobs.Somepartsofthecountryhadyear﹣roundprogramsinthenineteenthcenturymostlyforeconomicreasons.Theyfeltitwastedmoneytouseschoolbuildingsforonlypartoftheyear.Year﹣roundprogramscanalsoreducecrowdinginschools.Inoneversionstudentsattendschoolfornineweeksandthenhavethreeweeksoff.Thestudentsareingroupsthatarenotallinschoolatthesametime. Anotheryear﹣roundcalendarhasallstudentsinschooltogetherfornineweeksandoffforthree.Thisismeanttoprovidethecontinuouslearningthatcanbelostoveralongbreak.Butyear﹣roundschoolinghasopponents.Theysayitcancauseproblemsforfamilieswhentheywanttomakesummerplans.Andtheysayitinterfereswithactivitiesoutsideschool﹣﹣includingsummeremployment. Someexpertssaynoreallygoodstudieshavebeendonetomeasuretheeffectofschoolcalendarsonperformance.Butsomeeducatorsthinkyear﹣roundschoolingespeciallyhelpsstudentsfrompoorfamiliesthatlackeducationalsupportathome. 1Thebesttitleforthepassageseemstobe. A.DebatinguponYear﹣roundSchooling B.AdvantagesofYear﹣roundEducation C.DisadvantagesofaLongSummerVacation D.DifferentTypesofSchoolCalendars 2WhichofthefollowingisNOToneofthereasonsthatschoolsshouldextendschooldays? A.Thetraditionalcalendarisoutofdate. B.Longholidayscausestudentstoforgetmuchofwhattheylearned. C.Schoolsfacepressuretoraisetestmarks. D.Schoolsinothercountriesurgethemtodoso. 3Thoseagainstyear﹣roundschoolingarguethat. A.itdoeslittletohelpimprovestudents'performanceatschool. B.itmaycauselearningtiredness. C.itwillnothavemucheducationalvalue. D.itaffectsstudents'activitiesoutsideschool. 4Welearnfromthepassagethatyear﹣roundschooling. A.willenablestudentstoraisetheirscores. B.isexpectedtogetunderwaysoon. C.remainsacontroversialissue. D.isapprovedbythegovernment.
计算log43+1og83log32+log92=
许多人如此沉溺于网络购物以至于每天都要访问购物网站.So…
AlibabaGroupHoldingLtdsaidonThursdaythatitwillcreateanotheronlineshoppingeventinthenexttwomonthstotapfurtherintoruralconsumption. Thee﹣commercegiantwhichgeneratedagrossmerchandisevolumeof91.2billionyuan﹩14.3billioninthe24﹣hoursaleseventonWednesdaysaiditwillholdasimilarfestivalto1withtheupcomingSpringFestivalinFebruary. ZhangYongchiefexecutiveofficerofAlibabasaidlikeurbanresidentsmanyruralconsumershavealsobecomeonlineshopping2.Thesoon﹣to﹣be﹣launchedshoppingeventwillbetterserveruralconsumersandbringmore3productstothediningtablesofurbanconsumershesaid. TheHangzhou﹣basedfirmsaidtheSpringFestivaleventwillbelaunchedbyitscustomer﹣to﹣customersiteTaobaoanditsRuralTaobaobusinessunitwhichis4toonlineshoppersinruralareas. SunLijunvice﹣presidentofAlibabawhoisinchargeofRuralTaobaosaidtheSpringFestivalshoppinggalawillhelp5thegapbetweenurbanandruralconsumers. WewantvillagerstocelebrateLunarChineseNewYearwithseafoodfromNewZealandandwinefromFrance.Thatsaidwealsowanturbanresidentstoenjoyhigh﹣qualityfreshproduce6directlytotheirdoorstepshesaid. Alibabahasmadeglobalizationandgoing﹣ruralitstop7forfurtherdevelopment.Lastyearitsaiditwillinvest10billionyuanoverthenextthreetofiveyearstoprovidee﹣commerceservicesinabout100000villages. Ruralshoppersprovedtheirbuyingpowerby8morethan10millionyuaninthefirsteightminutesoftheNov11onlineshoppingfestival.Peoplein8000villagesparticipatedinthe24﹣hour9onWednesday.ThemostexpensiveorderofthedaywasanorderforaPorscheatabout500000yuan. Alibabadidn'tdisclosethespecific10madebyruralshoppersbutsaidthatitemssuchasTVsetsairconditionersshampoosandoilwereverypopularinvillages.
Don'thaveplentyoftimeforreading?Ifyouareinterestedinnon﹣fictionbooksherearegoodchoicesforyou. ARoomofOne'sOwn ThisessaybyEnglishwriterVirginiaWoolfisbasedonseverallecturesgiventotwowomen'scollegesatCambridgeUniversityin1928.InitWoolfdescribesthatit'scircumstancenottalentalonethatallowsmentobemoresuccessfulatwriting.Womeninotherwordsspendsomuchtimecookingcleaningandtendingtotheirchildrenthattheyhavenotimeleftforart.Towritewellthereforeawomanmusthavearoomofherown.Whileonitssurfacethisessayappearstobeonlyaboutwritingitisactuallyaboutwealthandclassfreedomandimprisonmentandthepowerstrugglebetweensexes. TheArtofWar WrittenbyancientChinesewarrior武士SunZiTheArtofWariswidelyconsideredtobeoneofthebestbooksaboutmilitarystrategyinhumanhistory.Consistingof13chapterseachdealingwithaseparateaspectabouthowtofightawarthebookhasbeentranslatedintoeverymajorlanguageandhasthousandsofeditions.Forcenturiesithasbeenusedtotrainworldleadersforitsdetailedstudyofmilitarystrategy军事策略andeffectiveleadership. LettertoMyDaughter ThisbookofessaysandpoemsbyMayaarespectableAmericanpoetiswrittenforthedaughtersheneverhad﹣themillionsofwomenbothyoungandoldthatsheconsiderstobeherfamily.Fromtheviewpointofacaringolderrelativethisbookcontainslessonsselectedfromherownlifeexperiencesincludingthebirthofheronlychildasonaswellasthedevelopmentandlossoffriendship. ABriefHistoryofTime Ifyou'reshortontimethenwhynotreadaboutwellthecreationoftime?This1998editionfrombrilliantscientistandmathematicianStephenHawkingexploresmind﹣bendingquestionsaboutthecreationoftheuniverseincludingifandwhenitwillendandifsohow.DespiteitsheavysubjectmatterHawkingaddressesthesequestionsinawaythat'seasytounderstandevenforthosewhoknowlittleaboutphysics. 1Whatcanwelearnaboutthefourbooks? A.ABriefHistoryofTimemainlyfocusesonthematteroftime. B.LettertoMyDaughterisactuallyacommonfamilyletter. C.TheArtofWargivesadviceonhowtobeworldleaders. D.ARoomofOne'sOwnismorethanaboutwriting. 2Whatcanbeinferredfromthepassage? A.AsaphysicistHawkingisequallyfamousinwriting. B.Mayadevotesherselftofightingforwomen'srights. C.ThebookbySunZiishelpfulinpolicy﹣making. D.Woolflooksdownuponmeninwriting. 3Whatisthepurposeofthepassage? A.Tomakecomparisonsbetweenthefourbooks. B.Torecommendthefourbookstoreaders. C.Tomakecommentsonthefourbooks. D.Topromotesalesofthefourbooks.
尽管前途未卜为了不让人生留有遗憾他习惯尽力做好每一件事.Despite
Everypersonhastheirownwayofsayingthingstheirownspecialexpressions.ManyeverydayAmericanexpressionsarebasedoncolors. Redisahotcolour.Americansoftenuseittoexpressheat.Theymaysaytheyareredhotaboutsomethingunfair.Whentheyareredhottheyareveryangryaboutsomething.ThesmallhottastingpeppersfoundinmanyMexicanfoodsarecalledredhotsfortheircolourandtheirfierytaste.Fastloudmusicispopularwithmanypeople.Theymaysaythemusicispopularwithmanypeople.TheymaysaythemusicisredhotespeciallythekindcalledDixiclandjazz. Pinkisalighterkindofred.Peoplesometimessaythey'reinthepinkwhenthey'reingoodhealth.TheexpressionwasfirstusedinAmericaatthebeginningofthe20thcentury.Itprobablycamefrommanybabieswhowerebornwithanicepinkcolourshowinggoodhealth. Blueisacoolcolour.ThetraditionalbluesmusicintheUnitedStatesistheoppositeofredhotmusic.Bluesisslowsadandsoulful.DukeEllingtonandhisorchestrarecordedafamoussong﹣﹣﹣MoodIndigo﹣aboutthedeepbluecolourindigo.InthewordsofthesongYouaren'tbluetillyou'vehadthatMoodIndigo.Someonewhoisblueisverysad. Thecolourgreenisnaturalfortreesandgrass.Butitisanunnaturalcolourforhumans.Apersonwhohasasickfeelinginhisstomachmaysayhefeelsalittlegreen.Apassengeronaboatwhoisfeelingverysickfromhighwavesmaylookverygreen. Sometimesapersonmaybeupsetbecausehedoesnothavesomethingasniceashisfriend'slikeafastnewcar.Thatpersonmaysayheisgreenwithenvy.Somepeoplearegreenwithenvybecauseafriendhasmoredollarsofgreenbacks.Dollarsarecalledgreenbacksbecausethatisthecolourofthebacksideofthepapermoney. Thecolourblackisoftenusedinexpressions.Peopledescribeadayinwhicheverythinggoeswrongasablackday.Thedateofamajortragedyisrememberedasablackday.Ablacklistisillegalnow.Butatonetimesomebusinessesrefusedtoemploypeoplewhowereonablacklistforbelongingtounpopularorganizations. 1Ifyouhadyourwalletstolenwhiledoingsomeshoppingyoumaycallit. A.awhiteday B.agreenday C.aredday D.ablackday 2SupposeMr.Brownsayshisthreechildrenareallinthepink.Thismeanstheyare. A.fitandhealthy B.gentleandmodest C.creativeandenergetic D.luckyandwealthy 3WhenshegothomeandfoundnothinghadbeendonebyherhusbandJanewasreally. A.blue B.redhot C.green D.black 4Inthefollowparagraphthewritermighttellthereadersomethingabout. A.people'sresponsetowardsablackday B.morewordsaboutacoloursuchasbrown C.theinfluenceofthetraditionalblues D.unpopularorganizationsintheworld 5Whatistheauthor'sattitude? A.Negative B.Neutral C.Pessimistic D.Passive
定义一种集合运算A⊗B={x|x∈A∪B且x∉A∩B}设M={x||x|＜2}N={x|x2-4x+3＜0}则M⊗N=
Haveyoueverheardthestoryofthefour﹣minutemile?ForyearspeoplebelievedthatitisimpossibleforahumanbeingtorunamileinlessthanfourminutesuntilRogerBanisterproveditwrongin1954.Withinoneyear37runnersbrokethebeliefbarrier.Andtheyearafterthat300otherrunnersdidthesamething. Whathappensifyouputananimalinapond?Anyanimalbigorsmallwillswimitswaythrough.Whathappens1someonewhodoesnotknowhowtoswimfallsindeepwaters?Youdrown.Ifananimalwhohasnotlearnedswimmingcouldescapebyswimmingwhynotyou?Becauseyoubelieveyouwilldrown2theanimaldoesnot. Thesecasesshowthepowerofbeliefs.Thereisnoother3powerfulforceindirectinghumanbehaviorthanbelief.Ourbeliefshavethepowertocreateandtodestroy. Inawayitisourbeliefs4determinehowmuchwe'llbeabletorealizeourpotential.Sopayattentiontosomeofyourbeliefs.Doyoubelieveyouareweakinmathematics?Doyoubelievethatotherpeopledislikeyou?Doyoubelievelifeisfullofproblems? Beliefisnotmysterioushoweverit'snothingbutthegeneralizationofapastincident.Asakidifadogbityouyoubelievedalldogstobedangerous.5changecertainbehavioridentifythebeliefs6associatewithit.Changethosebeliefsandanewpattern7create.
你真周到帮我预先订好了票子.It
Thecommoncoldistheworld'smostwidespreadillnessThemostwidespreadmisconceptionofallisthatcoldscausedbycold.Theyarenot.Theyarecausedbyvirusespassingonfrompersontoperson.Youcatchacoldbycomingintocontactdirectlyorindirectlywithsomeonewhoalreadyhasone.IfcoldcausescoldsitwouldbereasonabletoexpecttheEskimostosufferfromthemforever.Buttheydonot.Andinisolatedarcticregionsexplorershavereportedbeingfreefromcoldsuntilcomingintocontactagainwithinfectedpeoplefromtheoutsideworldbywayofpackagesandmailsdroppedfromairplanes. DuringtheFirstWorldWarsoldierswhospentlongperiodsinthebattlefieldcoldandwetshowednoincreasedtendencytocatchcolds. IntheSecondWorldWarprisonersatthenotoriousAuschwitzconcentrationcamp奥斯维辛集中营nakedandstarvingwereastonishedtofindthattheyseldomhadcolds.AttheCommonColdResearchUnitinEnglandvolunteerstookpartinExperimentsinwhichtheygavethemselvestothediscomfortsofbeingcoldandwetforlongstretchesoftime.Aftertakinghotbathstheyputonbathingsuitsallowedthemselvestobewithcoldwaterandthenstoodaboutdrippingwetindraftyroom.Someworewetsocksalldaywhileothersexercisedintherainuntilclosetoexhaustion.Notoneofthevolunteerscamedownwithacoldunlessacoldviruswasactuallydroppedinhisnose. Ifthencoldandwethavenothingtodowithcatchingcoldswhyaretheymorefrequentinthewinter?Despitethemostpains﹣takingresearchnoonehasyetfoundtheanswer.Oneexplanationofferedbyscientistsisthatpeopletendtostaytogetherindoorsmoreincoldweatherthanatothertimesandthismakesiteasierforcoldvirusestobepassedon. Noonehasyetfoundacureforthecold.Therearedrugsandpainkillers止痛片suchasaspirinbutalltheydoisrelievethesymptoms症状. 1Thewriterofferedexamplestosupporthisargument. A.4 B.5 C.6 D.3 2Whichofthefollowingdoesnotagreewiththechosenpassage? A.TheEskimosdonotsufferfromcoldsallthetime. B.Coldsarenotcausedbycold. C.Peoplesufferfromcoldsjustbecausetheyliketostayindoors. D.Apersonmaycatchacoldbytouchingsomeonewhoalreadyhasone. 3Arcticexplorersmaycatchcoldswhen. A.Theyareworkingintheisolatedarcticregions B.Theyarewritingreportsinterriblycoldweather C.Theyarefreefromworkintheisolatedarcticregions D.Theyarecomingintotouchagainwiththeoutsideworld 4VolunteerstakingpartintheexperimentsintheCommonColdResearchUnit. A.sufferedalot B.nevercaughtcolds C.oftencaughtcolds D.becameverystrong 5Thepassagemainlydiscusses. A.theexperimentsonthecommoncold B.themisconceptionaboutthecommoncold C.thereasonandthewaypeoplecatchcolds D.thecontinuedspreadofcommoncolds
Howtoavoidaboringconversation Whatexcusesshouldyouusetoavoidtalkingtopeopleyoudon'twanttotalkto?Herearetipsandnon﹣offensivewaystogetoutofunwantedconversations. Goforarefill.Itisnaturalforanyoneatapartytobeexcusedtogetarefill续杯.1Andonceyouexcuseyourselfmakeamovefastbeforethepersonrequestsyoutogetarefillforhimaswell. Pretendbadmood.CutofftheconversationbeforeitstartsbysayingsomethingalongthelinesofI'mnotinagoodmood.CanItalktoyoulaterifyoudon'tmind?2Sayitfirmlysothatpeoplegetthemessageloudandclear. Askyourfriendtosaveyou. 3Simplytextyourfriendandaskhimorhertocomeforapparentlysomethingimportant.Youwillbeabletoskipaboringchatwithaseeminglyreasonableexcuse. 4Youareadvisedtolookawayfromthatpersonanddon'tmakeeyecontactsothatyoucangivepowerfulhints暗示thatyoufindtheconversationextremelyboring.5Besuretotuneintotheconversationeverynowandthensoyoudon'tcomeacrossasrude. A.Behaveinanobviouslycarelessway. B.Justbesurethatthepersonyouaretalkingtodoesnotoffertoaccompanyyoutodoso. C.Don'tacttoopoliteinanattempttodrawsympathy. D.Usebodylanguagetoindicateboredom. E.Yourfriendisboundtoperformbrilliantlyincopingwiththedullone. F.Lookelsewhereandpretendthatsomethingelsehascaughtyourattention. G.Stuckinanunwantedconversationhowdoyougetout?
假如你是李华你的美国好友Alice将近期来你所在的城市旅游.请给她写信告诉她你愿意为她安排住宿及旅游行程.同时委托她帮你买一个Coach牌子的小钱包你打算将其作为生日礼物送给妈妈. 注意1.词数100左右2.可以适当增加细节以使行文连贯. DearAlice Yours LiHua.
假如你是红星中学高三学生会__李华下周会有你们友好学校StJohnsonSchool师生交流团来你校访问.作为学生代表你将在全校大会上发表演讲欢迎他们的到来.请你写好这篇发言稿内容包括 1.表达欢迎 2.介绍你校为交流团准备的中国特色的课程及活动的种类和内容 3.表达美好祝愿. 注意1.词数不少于120 2.开头和结尾已给出不计入总词数. Dearfriends Yours LiHua
一位母亲根据儿子3～9岁身高的数据建立了身高ycm与年龄x岁的回归模型为=7.19x+73.93用这个模型预测这个孩子10岁时的身高则正确的叙述是
QianZhongshuwas1Chinesescholarandwriter2knowforhiswitanderudition博学. DespitefailinginMathematicsQianwasaccepted3theDepartmentofForeignLanguagesunderTsinghuaUniversityin1929becauseofhisexcellent4performinChineseandEnglishlanguages.InTsinghuaHemethiswifeYangJiangwhowas5becomeasuccessfulplaywrightandtranslatorand6marryherin1935.InthesameyearQianreceivedgovernmentsponsorshiptofurtherhisstudiesabroad.TogetherwithhiswifeQianheadedfortheUniversityofOxfordinBritain.After7spendtwoyearsatExeterCollegehereceivedabachelorofliterature.HethenstudiedforonemoreyearintheUniversityofParisinFrancebeforereturningtoChinain1938. QianlivedinShanghaifrom1941to1945whichwasthenunderJapanese8occupy.Manyofhisworkswerewrittenorpublishedduringthisperiodoftime.Acollectionofshort9essayWrittenintheMarginsofLife写在人生边上10publishin1941.HismostcelebratedworkFortressBesiegedappearedin1947.OntheArtofPoetrywritteninclassicalChinesewasissuedin1948.
Prettyinpinkadultwomendonotrememberbeingsoobsessedwiththecolouryetitiswidespreadinouryounggirls'lives.Itisnotthatpinkinherently内在地badbutitissuchatinysliceoftherainbowandthoughitmaycelebrategirlhoodinonewayitalsorepeatedlyandfirmlyblendsgirls'identitytoappearance.Thenitpresentsthatconnectionevenamongtwo﹣year﹣oldsbetweengirlsasnotonlyinnocentbutasevidenceofinnocence.LookingaroundIdespairedattheextremelackofimaginationaboutgirls'livesandinterests. Girls'attractiontopinkmayseemunavoidablesomehowencodedintheirDNAbutaccordingtoJoPaolettianassociateprofessorofAmericanStudiesit'snot.Childrenwerenotcolour﹣codedatalluntiltheearly20thcenturyintheerabeforedomesticwashingmachinesallbabiesworewhiteasapracticalmattersincetheonlywayofgettingclothescleanwastoboilthem.What'smorebothboysandgirlsworewhatwerethoughtofasgender﹣neutraldresses.Whennurserycolourswereintroducedpinkwasactuallyconsideredthemoremasculinecolouradelicateversionofredwhichwasassociatedwithstrength.Bluewithitsintimations暗示oftheVirginMary圣母玛利亚constancyandfaithfulnesssymbolisedfemininity女性化.Itwasnotuntilthemid﹣1980swhenenlargedageandsexdifferencesbecameadominantchildren'smarketingstrategythatpinkfullycameintoitsownwhenitbegantoseeminherentlyattractivetogirlspartofwhatdefinedthemasfemaleatleastforthefirstfewcriticalyears. Ihadnotrealisedhowprofoundlymarketingtrendsinfluencedourperceptionofwhatisnaturaltorelativesincludingourcorebeliefsabouttheirpsychologicaldevelopment.TakingthetoddlerasanexampleIassumedthatphasewassomethingexpertsdevelopedafteryearsofresearchintochildren'sbehaviourwrong.ItturnsoutaccordingtoDanielCookahistorianofchildhoodconsumerismitwaspopularizedasamarketinggimmickbyclothingmanufacturersinthe1930s. Tradepublicationscounseled劝告departmentstoresthatinordertoincreasesalestheyshouldcreateathirdsteppingstonebetweeninfantwearandolderkids'clothes.Itwasonlyaftertoddler学步的小孩becamecommonshoppers'termthatitevolvedintoabroadlyaccepteddevelopmentalstage.Splittingkidsoradultsintoever﹣tiniercategorieshasprovedasafewaytoboostprofits.Andoneoftheeasiestwaystocutupamarketistomagnifygenderdifferences﹣orinventthemwheretheydidnotpreviouslyexist. 1Bysayingitis…therainbowline3Para1theauthormeanspink. A.shouldnotbethesolerepresentationofgirlhood B.shouldnotbeassociatedwithgirls'innocence C.cannotexplaingirls'lackofimagination D.cannotinfluencegirls'livesandinterests 2WhatdoesthewordencodeinPara.2referto? A.discovered B.programmed C.marked D.sealed 3Theauthorsuggeststhatourperceptionofchildren'spsychologicaldevelopmentwasmuchinfluencedby. A.themarketingofproductsforchildren B.theobservationofchildren'snature C.researchesintochildren'sbehavior D.studiesofchildhoodconsumption 4WemaylearnfromParagraph4thatdepartmentstoreswereadvisedto. A.focusoninfantwearandolderkids'clothes B.attachequalimportancetodifferentgenders C.classifyconsumersintosmallergroups D.createsomecommonshoppers'terms 5Itcanbeconcludedthatgirls'attractiontopinkseemstobe. A.clearlyexplainedbytheirinborntendency B.fullyunderstoodbyclothingmanufacturers C.mainlyimposedbyprofit﹣drivenbusinessmen D.wellinterpretedbypsychologicalexperts
Therehavealwaysbeenalotofcommonlybelievedbutfalseideasaboutbeingfatanddoingexercise.Somepeoplebelievethattheycan'thelpputtingonweightastheygetolderwhileothersholdthatiftheystopexercisingtheirmuscleswillturnintofat.Herearesomemoremyths I'llneverloseweight﹣Icomefromafatfamily Wrong!Whilewecan'tchangethebodytypewearebornwithwecan'tblameourgenesformakingusfat.There'splentyofevidencethatfatnessrunsinfamiliesandthemainreasonisthattheysharethesamehabitsofeatingtoomuchandexercisingtoolittle. IamfatbecauseIburncaloriesslowly Wrong!Fatnessisnotcausedbyaslowmetabolism新陈代谢.Infactalthoughfatpeopleconsumemoreenergythanslimpeopletheyalsofailtorealizehowmuchtheyeat!Keepingadiarycanhelpyouworkoutyourdailyfoodintakemoreaccurately. Exerciseisboring Wrong!Anythingwillbecomeboringifyoudoitrepetitively.Thekeyistodevelopabalancedandvariedprogrammethat'sfunaswellasprogressive.IfyouenjoyaSundaywalktakeadifferentroute.Ifyoudoyogatryataichiclass.Ifyoulikeswimmingsetyourselfadistanceortimechallenge. Nopainnogain Wrong!Exerciseisnotmeanttohurt.Indeedpainisyourbodytellingyousomething'swrongandcontinuingtoexercisecouldleadtoseriousinjury.Youmayexperiencemilddiscomfortasyoubegintoexerciseregularlybutthisisyourbodyadaptingtothepositivechangesinyourlifestyleandtheachesshoulddisappearrelativelyquickly.Iftheydon'trestandseekmedicaladvice. 1Whatdoestheauthorthinkaboutbeingfat? A.Itisthefamilygenesthatmakepeoplefat. B.Peoplearefatbecausetheyconsumetoolittleenergy. C.Adiaryofexercisecanpreventpeoplefrombecomingfat. D.Itistheconsequenceofpeople'sunbalancedlifestyle. 2Accordingtotheauthorhowcanwemakeexercisemoreinteresting? A.Bytakingvariedexercise. B.Bychoosingsimpleexercise. C.Bydoingregularexercise. D.Bystickingtooutdoorexercise. 3Whatisthepurposeofthepassage? A.Todeclaretheimportanceofkeepingfit. B.Toclarifysomemisconceptionsaboutfatnessandexercise. C.Toconfirmwhathaslongbeenbelievedaboutkeepingfit. D.Toexplainsomemedicalfactsaboutbeingfatanddoingexercise.
Somepigstendtobeoptimisticwhileothersaremorepessimisticaccordingtoanewresearchthatismeaningfultoanimalwelfare.ThestudypublishedinthejournalBiologyLettersisthefirsttoshowthatmoodandpersonalityinteractinananimalinfluencingjudgment. AsheraresearcherattheUniversityofNewcastle'sInstituteofNeuroscienceandherteamhousedgroupsofpigsintwotypesofenvironment.Onereflectedstandardcommercialconditionsandtheotherwascushierwithmorespaceandplentyofsoftdeepstraw.Afterthepigsgotaccustomedtothesenewhomesoverafewweekstheresearcherspicked18pigsfromeachtypetotrainandtesttheirjudgment. Todothiswetrainedeachpigthatinonecornerofatrainingroomtherewouldbeabowlwithchocolatesweets﹣pigslovethem﹣andattheoppositesideoftheroomtherewouldbeabowlcontainingcoffeebeanswhichpigsfindbitter﹣tastingaresearchersaid. Overanumberoftrainingtrialspigslearnedtogotothebowlreliablywhenitwasinthecornerwheretheyhadfiguredouttoexpectchocolatesweets.Onthecontrarytheyquicklylearnedtoavoidthebowlwhenitwasinthecornerwheretheywouldexpecttofindthecoffeebeans. Theresearchersnextplacedanunfamiliarbowlindifferentlocationstoseehowthepigswouldreact.Somegailydashedtothebowlnomatterwhatshowingoptimismthatitwouldcontaintheirfavoritesweets.Othershoweverbehavedasthoughtheyexpectedittocontaincoffeebeansdisplayingpessimism. Thefindingssuggestthataone﹣size﹣fits﹣allanswertoanimalwelfareissuesdoesnotexist.Evenifpigsarejustequaltobaconorothermeatforsomepeoplethereisstillcauseforconcern.Studieshavesuggestedthathowananimalistreatedduringitslifetimecandirectlyaffectmeatqualityandtaste. 1Whatwasthestudytryingtofigureout? A.Howtomakepigshappier. B.Thesimilaritiesbetweenhumansandpigs. C.Howlivingenvironmentaffectedpigs'mood. D.Howpigs'moodandpersonalityaffectedtheirjudgment. 2WhatdoestheunderlinedwordcushierinParagraph2mean? A.Simple. B.Morecomfortable. C.Unpractical. D.Lessfree. 3Whichbowlcantestwhetherapigisoptimisticorpessimistic? A.Thebowlwithchocolatesweets. B.Thebowlcontainingcoffeebeans. C.Thebowlfullofbothsweetsandbeans. D.Thebowlunfamiliartotwotypesofpigs. 4Whatdothefindingsofthenewresearchimply? A.Peopleshouldtreatpigsequally. B.People'shealthreliesonmeatquality. C.Peopleshouldmeetpigs'variousneeds. D.People'sattitudetowardpigsistotallywrong.
函数fx=的定义域为
MykidsandIwereheadingintothesupermarketovertheweekend.Onthewaywespottedamanholdingapieceofpaperthatsaid1myjob.FamilytoFeed. Atthisstorea2likethisisnotnormal.My10﹣year﹣oldnoticedhimandmakea3onhowbaditmustbetohavetostand4inthecoldwind. InthestoreIaskedeachofmykidsto5somethingtheythoughtourfriendtherewould6.Theygotapplesasandwichandabottleofjuice.Thenmy17﹣year﹣oldsuggestedgivinghima7.Ithoughtaboutit.Wewere8oncashourselvesbut…wellsometimes9fromourneedinsteadofourabundanceis10whatweneedtodo!Allthekids11somethingtheycoulddoawaywithfortheweek. Whenwehandedhimthebagof12helitupandthankeduswith13eyes.WhenIhandedhimthegiftcardsayinghecoulduseitfor14hisfamilymightneedheburstintotears. Thishasbeenawonderful15forourfamily.Fordaysthekidshavebeenlookingforotherswecan16!Thingswouldhaveplayedoutso17ifIhadsimplysaidNowereallydon'thave18togivemore.Steppingoutnotonlyhelpedabrotherin19italsogavemykidsthe20tasteofhelpingothers.It'llgoalongwaywiththem. 1A.Quit B.Changed C.Lost D.Finished 2A.condition B.place C.sight D.show 3A.suggestion B.comment C.decision D.call 4A.by B.proudly C.outside D.angrily 5A.draw B.say C.arrange D.pick 6A.appreciate B.supply C.order D.discover 7A.dollar B.job C.hotmeal D.giftcard 8A.easy B.low C.soft D.loose 9A.giving B.saving C.spending D.begging 10A.yet B.even C.still D.just 11A.declared B.shared C.ignored D.expected 12A.food B.medicine C.toys D.clothes 13A.sleepy B.watery C.curious D.sharp 14A.whoever B.whatever C.whichever D.whenever 15A.message B.example C.experience D.adventure 16A.relyon B.respect C.learnfrom D.help 17A.suddenly B.vividly C.differently D.perfectly 18A.time B.power C.patience D.money 19A.need B.love C.fear D.memory 20A.strong B.sweet C.strange D.simple
欧拉公式eix=cosx+isinxi为虚数单位是由瑞士著名数学家欧拉发明的它将指数函数的定义域扩大到复数建立了三角函数和指数函数的关系它在复变函数论里占有非常重要的地位被誉为“数学中的天桥”根据欧拉公式可知e2i表示的复数在复平面中位于
假定英语老师上课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∧并在此符号下面写出该加的词. 删除把多余的词用斜线\划掉. 修改在错的词下面划一横线并在横线下面写出修改后的词. 注意1.每处错误及其修改仅限一词. 2.只允许修改10处多者从第11处起不计分. Tomwashavingmuchtroublegetupinthemorningandwasalwayslatewithwork.Hisbosswantedtofirehimifhedidn'tstartcomingontimebuthewenttothedoctorforahelp.Thedoctorgavehimsomemedicineandtoldhimtotakethembeforehewenttobed.Themandoesastoldandsleptreallywellwakeupbeforethealarmhadevengoneoff.Hehadtimeforaproperlybreakfastandwasthefirstreachthefactory.Bosshesaidthatmedicinereallyworks!I'mpleasingtohearitsaidhisbossbutwherewereyouyesterday?
执行如图程序框图若输入的x的值为1则输出的n的值为．
在各项均为正数的数列{an}中a1=a且an+1=． 1当a3=2时求a的值 2求证当n≥2时an+1≤an
下列函数是奇函数的是
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