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如图是由几个相同大小的小正方体搭建而成的几何体的主视图和俯视图视图，则搭建这个几何体所需要的小正方体的个数至少为（ ）
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若图是由几个相同的小正方体搭成的几何体的主视图和俯视图则搭成这个几何体的小正方体的个数最少是
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如图是由8个大小相同的小正方体组合成的简单几何体.1该几何体的主视图如图所示请在下面方格纸中分别画出
如图是由几个相同小正方体搭成的几何体的主视图与左视图则该几何体最少由个小正方体搭成.
由一些大小相同的小正方体搭成的几何体的主视图和俯视图如图所示则搭成该几何体的小正方体最多有_____
如图几个完全相同的小正方体组成一个几何体这个几何体的三视图中面积最大的是
主视图
左视图
俯视图
主视图和左视图
由几个小正方体搭成的几何体其主视图左视图相同均如图所示则搭成这个几何体最少需要________个小正
如图由几个相同的小正方体搭成的几何体的主视图和俯视图组成这个几何体的小正方体的个数是
5个或6个
6个或7个
7个或8个
8个或9个
一个几何体是由一些大小相同的小正方体摆成的其主视图与左视图如图所示则组成这个几何体的小正方体最少有个
如图由几个相同的小正方体搭成的几何体的主视图和俯视图组成这个几何体的小正方体的个数最多是
7个
8个
9个
10个
如图所示是由若干个完全相同的小正方体搭成的几何体的主视图和俯视图则这个几何体可能是由个小正方体搭成的
一个几何体是由一些大小相同的小正方体摆成的其主视图与左视图如图所示则组成这个几何体的小正方体最少有个
如图是由若干个完全相同的小正方体组成的一个几何体.1请画出这个几何体的三视图主视图左视图俯视图2如果
某几何体由一些大小相同的小正方体组成如图分别是它的主视图和俯视图那么要组成该几何体至少需要多少个这样
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如图是由几个相同的小正方体搭建而成的几何体的主视图和俯视图则搭建这个几何体所需要的小正方体至少为个
由一些完全相同的小正方体组成的几何体的主视图和俯视图如图所示则组成这个几何体的小正方体的个数可能是.
下图是由若干个小正方形搭建的几何体的三视图那么此几何体由______个小正方形搭建而成.主视图俯视图
如图是由几个相同大小的小正方体搭建而成的几何体的主视图和俯视图视图则搭建这个几何体所需要的小正方体
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如图是由一些大小相同的小正方体搭成的几何体的主视图和俯视图则搭成该几何体的小正方体最多是___个.
由一些大小相同的小正方体搭成的几何体的主视图和俯视图如图所示则搭成该几何体的小正方体最多是个.
如图是由大小相同的小正方体组成的简单几何体的主视图和左视图那么组成这个几何体的小正方体的个数最多为_
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同学们学习了光的折射后知道了光从空气斜射入玻璃中时折射角小于入射角入射角增大折射角也增大．那么当光从空气斜射入玻璃中时折射角与入射角大小是否成正比呢【建立猜想】折射角与入射角大小可能成正比．【实验探究】同学们测得了四组实验数据．第2次实验如图所示请将实验数据填入表格中．【实验结论】折射角与入射角大小2选填成正比或不成正比．【评价与交流】根据实验数据还可以得出的结论是3．
数2的倒数是
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Postingaphotoofthefoodyou'reabouttoeatonWeChathasbecomeadailyritual惯例;仪式formany.Oftenthisfoodinthephotoisn'tasappealingtothoselookingatitbutscientistsarenowclaimingtakingaphotoofyourfoodbeforeyoueatitmakesittastebetter. ResearchersatUniversityofMinnesota'sCarlsonSchoolofManagementclaimtakingaphotoputsyouinthemomentandindoingsoheightensyour41.Thepersontakingthephotowillonsomelevelfeelthemotivationtocontinuethepractice. Researcherswonderedaboutthepowerofritualsafternoticingthefunny42thatpeopleoftenperformbeforeeatinganddrinking.Theyconductedexperimentstoinvestigatewhetherthesekindsofhabitualbehaviourinfluencestaste. Inthefirstexperimentsomeparticipantswereaskedtoeatapieceofchocolatefollowingadetailedsetof43:‘Withoutunwrappingthechocolatebarbreakitinhalf.Unwraphalfofthebarandeatit.Thenunwraptheotherhalfandeatit.'Theotherparticipantswere44instructedtorelaxforashortamountoftimeandtheneatthechocolatebarhowevertheywanted. Theresultsshowedthatthosewhohadperformedtheritualratedthechocolatemore45enjoyeditmoreandwerewillingtopaymoreforthechocolatethantheothergroup. Asecondexperiment46thesefindingsshowingthat47movementsdon'tproduceamoreenjoyableeatingexperience.Thedataalso48thatalongerdelaybetweenritualandconsumptionenhancedtheseeffectsevenwithacommonfoodlikecarrots. Whiletheseritualsmayseeminsignificanttheresearchersnotethattheeffectstheyproducearequiteamazing.Andwhileritualsare49beforemealtimestheycouldplayaroleinother50too.
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.每处错误仅涉最一个单词的增加删除或修改.增加:把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.Inourlifeweoftenregretwhatwedidandwhichwecouldn'tdo.Actuallyitdoesn'tbenefitusatall.Asformostofuswemissedmanychancetoearnmoremoneytogetahighpositionandtorealizeourdreams.Weoftenregretthatwedon'tseizethoseopportunitiesthusfeelupset.AlthoughwedoknowregrettingthePastisnobenefitbutwestillcan'thelpdoingitToavoidtheproblembelowweneedtopaymoreattentiontowhatyouaredoingnowmakingusbusierandhavingnotimetorecallthepast.Moreoverwe'dbettersetreasonablygoalsonebyone.Onlybydoingsocanwestruggleforourfuturebetter.
正因为是他被任命为经理该公司在过去的十年中迅速发展为广告业巨头.It.
ThereweresomanynightswhenIasayoungboyhadtowatchhelplesslyasmyfatherverballyandphysicallyabusedmymother.Icanstillrecallthesmellofalcoholseethefearinmymother'seyesandfeelthehopelessmiserythatcomeswhenweseepeoplewelovehurtingeachotherinincomprehensibleways. Iwouldnotwishthatexperienceonanyoneespeciallynotachild.IfIsettledowninthosememoriesIcanfeelmyselfwantingtohurtmyfatherbackinthesamewayshehurtsmymotherandinwaysofwhichIwasincapableasasmallboy.Iseemymother'sfaceandIseethisgentlehumanbeingwhomIlovedsoverymuchandwhodidnothingtodeservethepainimposeduponher. WhenIrecallthisstoryIrealizehowdifficulttheprocessofforgivingtrulyis.IntellectuallyIknowmyfathercausedpainbecausehewasinpain.SpirituallyIknowmyfaithtellsmemyfatherdeservestobeforgivenasGodforgiveusall.Butitisstilldifficult.Thesufferingswehavewitnessedorexperiencedliveoninourmemories.Evenyearslatertheycancauseusfreshpaineachtimewerecallthem. AreyouhurtandsufferingIstheinjuryneworisitanoldunhealedwoundKnowthatwhatwasdonetoyouwaswrongunfairandundeserved.Youarerighttobeoutraged.Anditisperfectlynormaltowanttohurtbackwhenyouhavebeenhurt.Buthurtingbackrarelysatisfies.Wethinkitwillbutitdoesn't.IfIslapyouafteryouslapmeitdoesnotlessenthestingIfeelonmyownfacenordoesitweakenmysadnessastothefactyouhavestruckme.Revengegivesatbestonlymomentaryrelieffromouremotionalpain.Theonlywaytoexperiencehealingandpeaceistoforgive.Untilwecanforgiveweremainlockedinourpainandlockedoutofthepossibilityofexperiencinghealingandfreedom;lockedoutofthepossibilityofbeingatpeace. Withoutforgivenessweremaintiedtothepersonwhoharmedus.Weareboundwithchainsofbitternesstrapped.Untilwecanforgivethepersonwhoharmedusthatpersonwillholdthekeystoourhappiness;thatpersonwillbeourjailer监狱看守. Whenweforgivewetakebackcontrolofourownfateandourfeelings.Webecomeourownliberators.Forgivenessinotherwordsisthebestformofself﹣interest.Thisistruebothspirituallyandscientifically.Wedon'tforgivetohelptheotherperson.Wedon'tforgiveforothers.Weforgiveforourselves. 66.Whydidthewritermentionthestoryofhisfather'sabuseofhismom A.Becausehelovedhismomandwantedtofightbacksomeday. B.Becausehisfatherfinallyrealizedhisownmistakeandwasforgiven. C.Becausewitnessinghismom'ssufferingisstillhurtinghimandhasnowaytorelieve. D.Becausehefeltthathewasspirituallyrelievedfromthepainthroughforgiveness. 67.Thewriterwrotethearticleinordertotellpeoplethat. A.wemayneverhealourpainsorsufferingsintheheartunlesswelearntoforgive B.weshouldneverforgetthesufferingsburiedinourhearts C.wemaygettiedtothepersonwhoharmedusallthroughlife D.weshouldn'tworryaboutthepainswecausedsinceforgivingisalwayseasierthanimagined 68.Whatisthe4thparagraphmainlyabout A.Hurtingbackdoesnogoodtorelievingone'sownhurtsbutforgiving. B.Ifsomeoneslapsyouyoujustslapbackwhichwilllessenyourpain. C.Thesufferingswehavewitnessedorexperiencedwillliveoninourmemoriesforever. D.Afterbeinghurtifonewantstoexperiencehealingandfreedomheshouldforgetthehurt. 69.Whichofthefollowingstatementsistheclosestinmeaningtotheunderlinedsentence A.Inordertohelpothersweshouldstopforgivingandfightback. B.Thepurposeofourforgivingisnottohelpotherpeople. C.Ourforgivingisalsousefultohelpingothersthoughtheymayhavehurtus. D.Onlybyforgivingotherscanwehelpthemtobegoodpeople.
Jacklookedupandsawinthedistanceredandgreennavigationlightscomingtowardsthemandknewitmustbeanavalpatrol巡逻boatbecauseofitsspeed.Asthehummingoftheboat'spowerfulenginesdrewcloserJackbentdown. Jackthenletoutafrightenedcryasthebrilliantbeamofasearchlightbrokethedarknessandsweptthefishingboatfromheadtotail.ByitsreflectedlightJackcouldclearlyseethesimilarlooksonthefacesofotherbentones. Jackknewthatifthepatrolboatcamecloseenoughitsmenwouldsurelyseethepeoplehiddeninthefishingboat.TocollecthimselfheleanedhisheadalittlesothathecouldseeDerekstandingintheheadoftheboatholdingthetiller舵柄.Derekmanagedtowavebackatthepatrolboatasifhehadnotacareintheworld.Howimperturbablehewas! SomeoneonboardthepatrolboatswitchedonaloudspeakerandavoicemadeharshandthinbyitshorndemandedWhereareyoubound DerekshruggedandshoutedbackTellmewherethefishrunandI'lltellyouwhereIambound.Thenoiseofidlingenginesdrownedhisvoice. Sayagain!barkedthespeaker. Anywherewherethere'sfish!Derekshoutedback.Therewasapause.Theboatsdriftedclosertoeachother. Whyaren'tyoushowingnavigationlights JackwatchedasDerekpretendedtolookpuzzledandleantoutoverthesideasiftoseewhattheysaidweretrue.Theymusthaveblownoutheapologizedwithashrug.I'lllightthemagainassoonasyoustoprockingmeaboutlikethis. AboardthepatrolboatthecaptainwaswonderingifitwouldbeworthwhilesearchingthisoldfishingboatforstowawaysashowmanybreathingsoulscouldsuchashabbyboathideTheradiosuddenlycackled.Abruptlywithoutanotherwordbeingexchangedthelightwentoutandthepatrolboatstarteditsenginesspeedingoffintothedarkleavingthefishingboatfloatingaboutinthewater. 66.Jackletoutascaredcrybecausehe. A.sawsomethinginthesea B.wasafraidofbeingdiscovered C.wasblindedbythebrightlights D.wasscaredbythefacesofcompanions. 67.Thepatrolboatcaptaindidnotsearchthefishingboatashe. A.didn'tfinditworthwhile B.lookeddownupontheshabbyoldfishingboat C.trustedDerekverymuch. D.wascalledtoanotherplaceviatheradio 68.Theunderlinedwordimperturbableinthepassageisclosestinmeaningto. A.anxious B.nervous C.calm D.sociable 69.WhichofthefollowingstatementsisTRUEaccordingtothepassage A.Derekdidn'trealizethatJackandothershidinthefishingboat. B.ThecaptainwassuspiciousofwhatDerektoldhim. C.Thepatrolboatapproachedthefishingboattoinspectillegalgoods. D.DereksucceededincoveringupfortheJackandothersontheboat.
Theorangutan红毛猩猩themostinactiveofthegreatapeshasunusuallystableDNAtoo.Researchershavejustcompletedthesequencing序列oftheentiregenome基因组ofourorange﹣hairedrelativeandtheyhavefoundtotheirsurprisethatitsDNAhaschangedmuchlessdramaticallyovertimethanhasthatofhumansorchimpanzees.TheorangutanisveryuniquesaysDevinLockeastructuralgeneticistheadingtheorangutansequencingproject.Theorangutangenomehadoneotherbigsurprise.LockeandcolleaguessequencedsixSumatranandfiveBorneanorangutanswhichareclassifiedasdifferentspecies.Theapeshavebeenphysicallyseparatedforatleast21000years﹣thelasttimelandbridgesbetweenthetwoislandsexisted﹣andearlierstudiesestimatedthattheybecamedistinctspeciesmorethan1millionyearsago.ButthenewanalysisreportedonlinetodayinNaturerewriteshistory:itappearstheypartedwaysjust400000yearsago.MostpreviousstudiesusedsmallsetsofmarkersandalimitedamountofDNAsequencesaysLocke.Thestatisticalpowerissomuchgreaterwhenyouhavethewholegenomeavailable.Theorangutannowjoinschimpanzeesandhumansasthethirdgreatapetohaveitsgenomesequenced.TheorangutangenomeisawonderfulresourcesaysevolutionarygeneticistSvantePääbooftheMaxPlanckInstituteforEvolutionaryAnthropologyinLeipzigGermany.ItwillhelpclarifyhoweachpartofhumanandAfricanapegenomesarerelatedtoeachotherandevolved.Suchinsightsarealreadycomingin.Orangutansoriginatedsome12millionto16millionyearsagogivingtheirgenomesmuchmoretimetoevolvethanthoseofhumansandchimpanzeeswhichsplitintotheirownlineages血统5millionto6millionyearsago.Butacomparisonofthethreegenomesshowsthathumansandchimpanzeesloseorgainnewgenesattwicetherateoforangutans.ThereasonmayhavetodowithstretchesofDNAcalledretrotransposons.Thesekeydriversofevolutionjumparoundthegenomecreatingnewgenesdamagingexistingonesoralteringgeneregulation.ThenewdatarevealthatcommonretrotransposonsknownasAluelementshavemovedaroundtheorangutangenomemuchlessthantheyhaveinthehumanandchimpanzeegenomes.Idon'twanttosaythat‘Aluretrotranspositionevents'areshutoffinorangutansbutthey'vebeencoveredupsaysLocke.Theresearchersalsodiscoveredthatovertimethestructureoforangutanchromosomes染色体haschangedlittlewhichmaybelinkedtotheAluelementfinding.Otherresearchershavesuggestedthatthestrongandhealthystructuralvariationinhumansandchimpsmayhavestimulatedincreasedintelligence.ButLockenotesthatorangutansarealsohighlyintelligent.Iforangutanshavehadverylittlestructuralvariationmaybethisdecouplesstructuralvariationfromintelligencehesays.AseparatebutrelatedstudypublishedtodayinGenomeResearchreportsyetanotherunexpectedfindingfromacomparisonofthethreegreatapegenomes.AteamledbyMikkelH.SchierupandThomasMailundofAarhusUniversityinDenmarkbothco﹣authorsoftheNaturereportdiscoveredthatsomeregionsofthehumangenomemorecloselyresembletheorangutanthanthechimpanzee.ThisreflectsthefactthatatthetimehumanssplitofffromacommonancestorwithchimpsbothspecieshadthesameancestralorangutanDNA.Buthumansandchimpanzeeshaveevolvedseparatelyformillionsofyears.IntheprocesschimpsformysteriousreasonslostsomeorangutanDNAthathumanskeptpossessionof.Moresurprisesaresuretocomeasresearcherscomparethegenomesofevenmoreapes.Projectstosequencetheothertwogreatapesgorillasandbonobosareunderway.74.OrangutansfromtwoislandsSumatranandBorneanbecamedifferentspeciessince.A.atleast21000yearsagoB.over1millionyearsagoC.some12millionto16millionyearsagoD.400000yearsago75.WhichofthefollowingstatementsisTRUEaccordingtothispassageA.ComparedwiththeDNAoforangutanchimpanzee'sislesschangedovertime.B.Onlythreeapes'genomeshavebeensequenceduptonow.C.Humans'ancestorssteppedontheirwayofevolution12to16millionsyearsago.D.Chimpanzeesgainnewgenesfasterthanorangutansdoinevolution.76.Thereasonoforangutan'slittlechangeinDNAisthat.A.thisspeciesisnotasactiveinintelligenceashumansorchimpanzees.B.thenewlyidentifiedAluelementsisbelievedtohaveplayedaspecialroleC.AluretrotranspositionsinorangutanareshutoffduringthecourseofevolutionD.orangutan'slowintelligencefailstostimulatethechangeofitsDNA77.Someregionofhumangenomeismoresimilartothatoforangutanthanchimp'sbecause.A.humanandorangutansharethesameancestorbutchimpdoesn'tB.humansandchimpanzeeshaveevolvedseparatelyformillionsofyearsC.chimpsfailedtohangontoorangutanDNAforsomeunknownreasonbuthumandidn'tD.chimpsdidn'tactasactivelyashumansresultingintheirlosingsomecriticalorangutanDNA.
Beingskinnyisnotbeautifulbutbeinghealthyis.Mostyoungpeopleunfortunately25convincethatbeingthinandthereforebeingstylishisamajorwayofmaintainingself﹣worth.Tomakethematterworsetheymighttakethissofarthattheyarelikelytoendup26eatingdisorders. Eatingdisordersarepsychologicalillnessesdefinedbyabnormaleatinghabits27mayinvolveeitherinsufficientortoomuchfoodintaketothedamageofanindividual'sphysicalandmentalhealth.Bulimianervosa暴食症andanorexianervosa食欲匮乏arethe28commonformsofeatingdisorders. 29diagnosedwithanorexianervosaarewellunderahealthybodyweight.Butpatientswithbulimianervosamayhaveabodyweightthatfallswithintherangefromnormaltooverweight.30primarilythoughtofasaffectingfemaleseatingdisordersinfluencemalesaswell. Theprecisecauseofeatingdisordersisnotentirelyunderstoodbut31isagreedthatthediseaseislinkedtoothermedicalconditionsandsituations.Besidesculturalidealizationofthinnessandyouthfulnessalsocontributesto32reduceweightforcefully.Theproblemhasaffectedalargepopulationworldwide.
Asyougetolderitfeelsliketimetendstomovefaster.AsDanArielyexplainsoveratTheWallStreetJournalwetendtofallintofamiliarroutines25weageandthatmakestimemovequickly. Weperceivetimeassomethinglikeastackofmemoriessothelessnewexperiencesyouhavethe26likelyyouaretofillinthosememorieswithinterestingthings. Timedoesgobyormoreaccuratelyitfeelsasiftimeisgoingbymorequicklytheolderweget. Inthefirstfewyearsofourlivesanythingwesenseordoisbrandnewandmanyofourexperiencesareuniquesotheyremainfirmlyinourmemories.Butas27yearsgobyweencounterfewerandfewernewexperiences﹣bothbecausewe28accomplishalotandbecauseweareslavestoourdailyroutines. Forexampletrytoremember29happenedtoyoueverydaylastweekchancesarethatnothingextraordinaryhappenedsoyouwillbehard﹣pressedtorecallthespecificthingsyoudidonMondayTuesdayetc. WhatcanwedoaboutthisMaybeweneedsomenewappthatwillencourageustotryoutnewexperiencespointoutthingswe'veneverdonerecommenddisheswe'venevertastedandsuggestplaceswe'veneverbeen.Suchanapp30makeourlivesmorevariedencourageustotrynewthingsslowdownthepassageoftimeandincreaseourhappiness. 31suchanapparrivestrytodoatleastonenewthingeveryweek.It'snottoodifficulttopush32todonewthings.
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12分在验证焦耳定律Q＝I2Rt中电热与电阻的定性关系时实验小组出现了如图三种电路连接情况已知R甲＜R乙．闭合开关三种电路的电流表指针均发生了偏转经过一段时间后观察并记录2根玻璃管内液面上升的高度△h小组实验报告汇总如下表请把表格空白处填写完整．
语言运用需要足够的词汇量为基础.base.
Adropinthesun'sradiationcancausecoldwintersinpartsofNorthAmericaandEuropescientistssayafindingthatcouldimprovelong﹣rangeforecastsandhelpcountries41forstorms. Scientistshaveknownforalongtimethatthesunhasan11﹣yearcycleduringwhichradiationfromthesunreachesan42thenfalls.Butdetectingaclearlinkofthecycletotheweatherhasprovedmuch43. OurresearchnoticesalinkbetweensolaractivitiesandregionalwinterclimateleadauthorSarahInesonoftheUKMetOfficetoldthereportersinanemail. Herteamfocusedonthedatafromtherecentminimumsolarradiationperiodduring2008﹣10whichwasan44calmperiodforthesunbutatthesametime45wintersintheU.SandEuropewererecordedwhichbroughttroublestomanybusinessesandmadepeople'slivesdifficult. Theresearchersfoundthatareductioninradiationfromthesuncanaffectwindpatterns46coldwinters. Whileradiationlevelswon'ttelluswhattheday﹣to﹣dayweatherwillbetheyprovidetheexciting47ofimprovedpredictionforwinterconditionsformonthsandevenyearsahead.Thesepredictionsplayanimportantroleinlong﹣termweatherplanningInesonsaid. Ineson'steamusedthedatainacomplexcomputerto48long﹣termweatherpatterns.Itsuccessfullyreproducedwhatscientistshadobservedhappeningintheupperatmosphereduringchangesinsolarradiation.Morestudywasneededthough.Thekey49intheexperimentlayinthesatellitedatausedbecauseitspans跨度onlyafewyears.Sotherearestillquestionsconcerningwhetherthecurrentresearchresultsareaccurateandwhethertheycanbe50toothersolarcyclesshesaid.
Tradehasaprettybadnameinsomequarters.Traderobspoorpeopleofaproperlivingandkeepsthemtrappedinpoverty.Thereisawidelyheldpopularviewthattradeisunfair. Thoughmanyclaimthatafreertradewouldchangethecurrentindecentreputationofworldmarketthecure﹣allfreetradeisthedreamofmosttextbookeconomists.InfactFreetradehasbeenusedsuccessfullybypowerfulcountriestolandtheirmass﹣producedgoodsonfreshoverseasdumpinggroundsandsqueezeoutlocalhouseholdbusinessesandcraftsmanship. Athomethestoryisdifferent.Largefirmshavelittleappetiteforfreetradeandcompetitionintheirownbackyard.Theyprefertoenjoytheadvantagesandprotectionsforwhichtheyhavecarefullyearned.Freethusfiercecompetitionhaslittleappealforthosewhounderstandthattheywillmakemoreprofitiftheycancornerthemarketwhetherathomeorabroad. Bycontrastmakingtradefairerisaboutaddressingbothoutcomesandprocessesoftrade.Fairnessisnotjustmoralrequest.Itaffectsbehaviour.Actuallytheconceptoffairnessincreasessteadilyassocietiesachievegreatermarketuprightness:Businessmenfromuprightsocietiesarewillingtopunishthosewhodonotplayfairevenifthisiscostlytothemselves. Fairertraderatherthanfreertradecouldpartlymendmal﹣administeringofresourcesincertainareas.ThoughthoughtofasevileconomicpoliciesinthewestworldcarefullyplannedspecialpreferencesandprotectionismcouldbeusedintelligentlytohelptoblocktheeconomicrobberyoftherichclassinAfricancountriesandtoimprovethelivesofthebottombillion. Fairnessisalsoimportantinthecontroloftrade.ThecurrentInternationaltradenegotiationshaveresultedinrulesfavouringthepowerful.Therulesaremadeinnegotiationsinwhichthecountriesincontrolcalltheshotsanddonotalwaysdosoingoodfaith.Industrializedcountrieswereoftenfoundtohaveobtaineddefiniteandfar﹣reachingcommitmentsfromdevelopingcountriesinexchangeforvaguepromisessuchastoliberaliseagriculturewhichtheyhavenotkept.Ontheotherhandtheessenceofthefairtradeliesinthepromisethateverypartybenefitfromthebusinessrichorpoorpowerfulorweak. Makingtradefairerisimportanttoavoidafurtherpublichateagainsttrade.Itisalsoimportantsoasbettertobalancetradegoalswithotherimportantnationalgoalssuchasenvironmentalandsocialprotection.Finallytheso﹣calledfreetradesystemneedstobemadefairersothatitdoesnotblockcompetitionandcrushinnovationandbusinessspirit.Itneedstoofferamorelevelplayingfieldtocommercialnewcomersandcompetitorsinrichandpoorcountriesalike. 74.Freetradeisaconceptatrichcountries'serviceto. A.openupnewmarketsabroad B.definetradeintheeconomictextbooks C.dumppollutantsinpoorcountries D.learntheskillsfromlocalhouseholdbusinesses. 75.Thekeymechanismoffairtradeis. A.punishingtherichcountrieswhentheycheatthepoorcountries B.makingsurethatrichcountriesprovidemorechancesforpoorcountries C.promotingspecialpreferencesandprotectionisminpoorareas D.guaranteeingthecommoninterestsofallthedealers 76.Theunderlinedwordmal﹣administeringinthepassageisclosestinmeaningto. A.macro﹣management B.overallcollection C.unevendistribution D.negativemining 77.WhichofthefollowingstatementsisTRUEaccordingtothepassage A.Largefirmsearnhugeprofitsfromfreetradeondomesticmarkets. B.Honestdealerswouldsacrificetheirowninteresttodisciplinethedishonest. C.Specialpreferencesandprotectionismareoccasionallyadoptedinwesterncountries. D.Afairertradehelpstoeasecompetitionbetweentherichandthepoor.
Pickingauniversityisatenseperiodofaskingyourselfwhichinstitutionismostrelevant.That'swhyuniversityrankingsplaysuchavitalroleinstudentssearchingfortheirnextacademicdirection.Rankingsarealsoaninescapablepartofthereputationandbrandimageofuniversities.Nouniversitywebsiteiscompletewithouttheclaimtobeinthetop100forsomethingorotherreportedtheBBC.Thereasonissimple:Rankingshelpthemtoattractstudentsstaffandresearchinvestment. Currentlytherearenumbersofuniversityrankingsandeachhasitsownlistofcriteria.Butthemaincategoriesarethesame:academicreputationgraduates'performanceandfacultyresources. Howeverexpertspointouttherankingprocessisn'tentirelyreliable.MarkKantrowitzaUSfinancialaidresearchersaiduniversityrankingsweremostlyjustforshow.HewroteinTheNewYorkTimes.Itmaygiveyourparentsbetterbraggingrightsbutthat'saboutit. Moreoverit'snotdifficulttoseethelimitationsofuniversityrankings.Manyrankingsfocusonthenumberoftimesresearchworkiscited引用byotherresearchers.IthelpsBritishandUSuniversitiestodominateglobalrankingsbecauseEnglishisthefavoredlanguageofacademiaJohnO'LearyamemberoftheQSacademicadvisoryboardtoldTheGunrdian.AlsorankingssuchasQSmainlyfocusonthequalitiesoftheuniversityratherthanitsstudents.AnyuniversityrankingislikelytohelpstudentsmakebetterdecisionsaboutwheretostudybuttheneedtobalancethemwithothermorehumanfactorsisalsoimportantsaidPhilMossaneducationandadmissionsconsultant.Advicefromgraduatesorcurrentstudentscanbeasvaluableinprovidingagenuineinsightintotheexperienceorqualityofaparticulardegreeprogram.Itcanalsoaddanelementthatrankingscanneverconvey﹣﹣theactualemotionofauniversityexperience. 32.WhydouniversitiesconsiderrankingsimportantA A.Rankingsmakethemmoreappealing. B.Rankingsarestudents'onlyreference. C.Rankingscanincreasetheiracademiclevel. D.Rankingshelpthemcompletetheirwebsites. 33.WhatdoestheunderlinedItinparagraph4refertoC A.Acadenucresearchwork. B.Thenumberofresearches. C.Thewayofrankinguniversities. D.Thelimitationofuniversityranking. 34.AccordingtoJohnO'LearywhathelpsBritishandUSuniversitiesrankwellA A.ThewideuseofEnglishinacademia. B.Theiroutstandingqualities. C.Theirgraduates'excellentperformance. D.Theacademia'sfavortothem. 35.BesidesrankingwhatdoesPhilMosssuggestyoushouldrefertoifyou'repickingauniversityD A.Investmentineducation. B.Guidancefromprofessors. C.Informationonwebsites. D.Suggestionsfromstudents.
参与本次工业展览会的观众无不对一家参展商所推广的家庭自动报警系统赞不绝口.who.
小明参加科技节“掷飞机”比赛该项目的规则是纸飞机掷出后在空中滞留的时间越长成绩越好．查阅资料得知纸飞机在空中滞留的时间与其形状质量出手速度和出手角度有关．小明认为还可能与纸飞机表面的粗糙程度有关．为了验证自己的猜想小明准备了以下器材进行实验研究 发射器如图秒表剪刀面积质量大小和表面粗糙程度不同的两种纸AB各若干张同种纸正反面粗糙程度相同． 1发射器的弹簧压缩得越短释放后纸飞机获得的速度越大其原因是． 2写出本实验的主要步骤．
已知圆锥的底面半径为5cm母线长为13cm则这个圆锥的侧面积是
窗玻璃上趴着一只壁虎如图水平向右推窗当壁虎随窗玻璃一起向右匀速移动的过程中壁虎受到摩擦力的方向是
这部滑稽的电影的确分散了我注意力让我暂时忘记了这些难题.which.
NotbeingsurewhereIwanttostartthisIwillsaythatIlostmymombackinAprilofthisyear.Shewasninety﹣two.41Iwasnotexpectingherto42andIdon'tthinkshewasexpectingiteither.Iwasveryclosetomymombeinganonlychild.Wedidhave43onthesurfacebutwestillhadacloserelationship44those. Beingnewlymarriedlessthanayearandhavingmovedacoupleoftimes45Ihavehadmorechangesrecentlyinmylifethanatanyotherpointofmyfifty﹣fouryears.StabilityisoneofthegiftsthatMom46meandithadsomany47thatIwasn'tawareofuntilnow.MyhusbandandIhavemadesome48toMom'shomeandwillbemovingattheendofnextweek.Itisnowourhomebutitstillhasmy49heartinit.It'swhereIgrewupandtherearemany50thatwilllivetherewithus.AtthesametimeIamlookingforwardto51someveryhappyandmemorableoneswithmyhusband. Mom52suchabigpartinmylife.Ourliveswere53wovenbecauseshegavemehervalueswhichhavebecomestrongly54inthewomanIamtoday.Idon'thaveanychildrenwhomIcould55theseonto.HoweverMother'svaluesaffectmeeverydaywiththe56IhavewithotherswhetherIknowthemornot.IhopeMomwouldbe57ofwhoIamwhatI'vebecomebecauseofherandof58Iamgoingtolivewithmy59.ShegavemeeverythingIneededtoknowinlife:respectothersandgivehelptootherswho60itmost.IloveyouMomandIwillneverforgetyou. 41.A.However B.Otherwise C.Moreover D.Though 42.A.passout B.passaway C.passby D.passdown 43.A.promises B.agreements C.differences D.similarities 44.A.intermsof B.incaseof C.inneedof D.inspiteof 45.A.once B.since C.though D.either 46.A.saved B.brought C.gave D.taught 47.A.ideas B.thoughts C.meanings D.benefits 48.A.studies B.decisions C.changes D.remarks 49.A.son's B.father's C.mom's D.husband's 50.Amemories B.chances C.choices D.dreams 51.A.receiving B.promising C.making D.supplying 52.A.affected B.played C.controlled D.managed 53.A.brightly B.lightly C.roughly D.tightly 54.A.intended B.designed C.rooted D.admitted 55.A.hold B.pass C.drive D.reply 56A.contact B.interest C.trouble D.effect 57.A.free B.proud C.full D.certain 58.A.what B.where C.why D.when 59.A.life B.children C.husband D.time 60.A.hunt B.need C.treat D.consider
小明制作了一个如图所示的简易气压计．将橡皮膜平铺在敞口容器上并用胶带绑紧．检查气密性后将吸管的A端粘在橡皮膜中心B端靠近卡纸的M处．外界气压的变化会引起橡皮膜凹凸程度的变化从而使吸管绕O点转动指示气压大小变化．外界气温的变化对容器内气压的影响极小 1检查气密性时将绑有橡皮膜的容器浸没在水中轻压橡皮膜如果观察到则气密性不好． 2小明将该气压计从甲地带到乙地发现吸管B端的指向从M处变为N处．则甲乙两地气压较大的是．
计算+正确的结果是
温州地区常受台风侵袭为测量风速小明设计了一台简易风速仪其工作原理如图甲所示．装有挡风板和滑片P的轻质滑块与轻质弹簧套在滑杆MN上弹簧左端固定右端与滑块相连．挡风板的挡风面积为0.2米2均匀电阻丝AB长为20厘米阻值为10欧电源电压U0恒为6伏保护电阻R0为14欧电压表量程0～3伏．弹簧弹力F与弹簧长度改变量x的关系如图乙所示．无风时滑片P在A处有风时滑块移动稳定后读出电压表示数计算并查阅下表数据可知风速及风级． 表中风压p是指与风向垂直的受风面上单位面积增加的压力即单位面积受到的风力．测量时保证风垂直吹在挡风板上不计一切摩擦阻力． 1在滑片P左移的过程中电路的总电阻．选填“变大”“不变”或“变小” 2当电压表示数U为2伏时风速仪所测的风为几级写出计算过程 3小明想在风速仪的电压表上直接标出风速查阅资料后获知该挡风板所受的风力与风速的平方成正比．经计算他画出了风速v与电压表示数U的关系曲线如图丙所示．后因保护电阻R0损坏他将其换成了阻值为5欧的电阻请你在图丙坐标系中大致画出更换电阻后的风速v与电压表示数U的关系曲线并在曲线上标出所能测量的最大风速的对应点Q．
众所周知大量砍树对自然平衡有灾难性的影响.As.
AroundfouryearsagoIreceivedacallfromtheprincipalofourschoolastotheParentsViewtalkthenextmorning.Heaskedmetospeaktothegroup.Afterthecallmywholebodybecamefeverishandpanicky.Thetimefromhiscalltothenextmorningseemedlikeyears.ThewholenightIcouldnotsleepwithmanyominousapprehensionsinmind.OneofthemwastocalltheprincipalwithregretandtellhimthatIcouldnotcome.FinallyIgatheredsomecourage.IthoughtIfImissthisopportunitysurelytheschoolwillneverinvitemeagaintoanyoftheirprograms.Ireachedtheschoolintime.Beforemyturncamemywholebodywastrembling.WhenmyturncameandIstartedspeakingmyheartbeatincreasedandmymouthwentdry.Iwasn'tevenabletoreadthewrittenspeechproperly.IwasnotawareofwhereIwasstandingandwhatIwasreading.ThatwasthedaywhenIrealizedmybiggestweaknessPublicSpeaking.AftermyspeechImetwiththeprincipalandexplainedwhathappenedtome.Hetoldmethatthishappenstoeveryone.Evengreatspeakerfacedthesamethingswhentheystarted.HesuggestedthatIcomeagainnexttime.AroundonemonthlaterIwasinvitedtorefertoatopiconMotivation.ThistimeIwasfeelingcomfortable.MyspeechwasnotonlyappreciatedbytheprincipalaswellastheteachersbecauseIwasabletogetmyideaacrosstothem.Theyencouragedandpraisedmyefforts.AfterdeliveringissuccessfullyIbecamemoreconfident.lsaidtomyselfIfIcanspeakinfrontofsuchalearnedaudienceliketheprincipalwhoeducatesothersIcannowspeakinfrontofotherstoo.IstarteddeliveringlecturesinmyplantonvarioustopicslikeSelfMotivationPersonalityDevelopmentPersonalExcellenceSpokenEnglishandPresentationSkills.Thishasbecomeapassionforme.Ilearnedthateverythingispossibleifwehavethecouragetotakethefirststep.24.WhichofthefollowingisthehesttitleforthepassageAA.PracticeMakesaManaBetterSpeechmakerB.PublicSpeakingMakesaManEmbarrassed.C.PrincipalProvidestheBestChances.D.SpokenEnglishDevelopsinMaltingSpeeches.25.TheauthorhadbadfeelingsbeforethespeechbecauseD.A.hedislikedtheideaofgivingalectureB.hehadgotahighfeverbeforethatC.heregrettedacceptingtheinvitationD.hefearedhecouldn'tperformitproperly26.WhatdoestheunderlinedpartominousapprehensionsinthefirstparagraphmeanBA.Unluckyopportunities.B.Negativeideas.C.Curiousviews.D.Happycomments.27.WhatcanweconcludefromthepassageCA.Nothingistobegotwithoutpainsbutpoverty.B.Knowledgemakeshumbleignorancemakesproud.C.Ajourneyofathousandmilesbeginswithasinglestep.D.Necessityisthemotherofinvention.
雾天能见度低骑车易发生交通事故要减速慢行． 1雾天空气中会形成大量水珠．该过程发生的物态变化是 2小明要为自行车设计一种“雾灯”以提示过往的行人和车辆．要求工作时灯泡能持续交替闪烁忽 略弹性衔铁和电磁铁线圈电阻下列电路中符合设计要求的是．
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