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Cloudsmayhavesilverliningsbuteventhesunniestofusseldomglimpsethemonfoot.ThemarvelousBlurBuildingthathoversabovethelakeofYverdonlesBainsinSwitzerlandprovidessuchanopportunity.Itgivesanyonewhohaseverwantedtostepintothecloudstheywatchfromtheairplanewindowachancetorealizetheirdream.Visitorswearwaterproofponchosbeforesettingoffalongawalkwayabovethelakethattakesthemintothefoggyatmosphereofthecloud.Theexperienceofphysicalformsblurringbeforeyoureyesasyouenterthecloudisbothdisorientatingandliberating.Howeverfirmlyyourfeetareplantedontheflooritishardtoescapethesensationoffloating.Ontheupperdeckofthisspaceship-shapedstructuretheAngelBaratranslucentcounterlitintonesofaqueousbluebeckonswithadozendifferentkindsofmineralwater. ToenterthissublimebuildingsituatedinthelandscapeoftheSwissAlpsfeelslikewalkingintoapoem—itispartofnaturebutremovedfromrealityItsarchitectsElizabethDillerandRicardoScofidioofNewYorkdesigneditasapavilionfortheSwissExpo2002intheThreeLakesregionofSwitzerlandanhour’strainridefromGenevawhichfeaturesaseriesofexhibitsonthelakes.TheBlurBuildingiseasilythemostsuccessful.IndeedyoucanskiptherestoftheExpo—aSwisskitschversionofBritain’sMillenniumDome—andheadstraightforthecloudwhichisthereuntiltheendofOctober. Thearchitectsaskedthemselveswhatwastheidealmaterialforbuildingonalakeanddecidedonwateritself.’theelementofthelakethesnow.theriversandthemistaboveit.Theywantedtoplayonandlaybarethenotionofaworld’sfairpavilionbycreatinganetherealghostofoneinwhichthereisnothingtosee.Theresultisarefugefromthesurveillancecamerasandhigh-definitionimagesofoureverydayworld—aparticularteaseinSwitzerlandwhereclarityandprecisionaresoprized.Anti-architectureornottheBlurBuildingcostacool$7.5million. Out-of-the-boxthinkingisatrademarkofDiller+Scofidio.ahusband-and-wifeteamofarchitectureprofessorswhobecamethefirstarchitectstowinageniusgrantfromtheMacArthurFoundationin1999.Althoughtheyhavebuiltverylittletheyareinterestedinthesocialexperienceofarchitectureinchallengingpeople’sideasaboutbuildings.Theytreatarchitectureasananalyticalartformthatcombinesotherdisciplinessuchasvisualartandphotographydanceandtheatre. TorealizeitsUtopianpoetrytheBlurBuildinghastobetechnologicallystate-of-the-art.Waterfromthelakeispumpedthrough32.000fognozzlespositionedthroughouttheskeleton-likestainlesssteelstructure;sothebuildingdoesnotjustlooklikeacloudontheoutsideitfeelslikeacloudontheinside.Andwhilethe300-foot-wideplatformcanaccommodateupto400peoplevisitorsvanishfromeachotherinthemistataboutfivepacessoyoureallycanwanderlonelyasacloud.Wordsworthmustbesmiling. ThespectacleonthedeckofthisstructureisNOT
[A]WhatelsemightbewrongMoneyGermany’sspendingperpupilisabitbelowtheOECDaverage.ButsoisBritain’sandBritishpupilstothesurpriseofmanytherefiguredinthetopteninallthetests.TheorganisationofschoolingthenThatwouldbehardmjudge.Educationistheresponsibilityofthecountry’s16distinctLanderstatesandthevarioussystemstheyuserangefromthehighlyselectivetothefullycomprehensive. [B]Thereismoreofaclueperhapstobefoundintheteachingforceitself.Germany’sschool-teachersarerelativelywellpaidbuttheyaretoofew:Germanyhasoneofthehighestpupil-teacherratiosamongOECDcountriesandinmanysubjectsanacuteshortageofteachers.Norarenewonesflockingin:two-fifthsofallteachersareover50.Oneinthreeadmitstofeeling"burntout”;nearlythree-quarterstakeearlyretirementonhealthgrounds.Inevitablythequalityofteachingsuffers. [C]"Shocking""scandalous"and"catastrophic"politiciansparentsandeducatorshavewailedinunison.AndbeneaththeaveragefigureslieothersevenmoreshockingforGermany’sdeeplydemocraticburghers:evidenceofawidegap---oneofthewidestfoundbytheOECD’sresearchers--betweenGermany’shighest-performingstudentsanditslowest.Nearlyaquarterofits15-year-oldscouldnotreadandunderstandasimpletext.NotthatGermanycantakemuchcomfortfromtheachievementofitspupilsattheotherendofthescale.Only28%ofits15~year-oldsreachedthestudy’stoptwolevelsofreadingabilitycomparedwithhalfinFinlandwhichwasrankedfirstoverallandoverathirdinadozenothercountries. [D]Otherexplanationsabound.OneistheGermanzealforrotelearningratherthanforteachingchildrentothinkforthemselves.Anotheristheinadequatesupportgiventoweakerstudentsandtherequirementthatanypupilwhogetspoormarksinjusttwosubjectshastorepeatthewholeyear.Mostoftheother15-year-oldpupilsinvolvedintheOECDstudywereallinthesamegradehavinggoneupwiththeircontemporariesasagroup;theGerman15-year-oldsspannedfourgradesbecausesomanyhadhadtorepeatayearormore. [E]HowcanthisbeWhateverelseGermanyisfamousforitsthoroughness.Itstechnicaleducationwasoneofthewondersofthe19thcenturyandlongafter.WhathasgonewrongAlmostasalarmingasthefiguresnoonecantell.BlamingthelargenumberofstudentsofforeigndescentwhoaccountforoneintenpupilsinGermanschoolsisnotanadequateexcuse:German-speakingAustria—yeseasy-goingAustria-cametenthinthereadingtestsalthoughithasasimilarproportionofpupilsofforeigndescent. [F]SomepeopleblameGermany’scompressedschooldaywhichstartsat8amandusuallyendsat1.30pmor2pm.Manyparentswouldlikealaterstartandalongerday.SomeLanderaretryingoutall-dayschoolingbutsofaronlyonasmallscale.Thebigneedrunsanotherargumentisformorefleekindergartenplacestohelpinparticularchildrenfromnon-German-speakingimmigrantfamilies.Atthetopofthescaleithaslongbeenarguedthatmorepupilsshouldbeencouragedtogoontohighereducation.Atpresentonly28%dosocomparedwithanOECDaverageof45%—andonly16%emergetypicallysomesixyearslaterwithadegree.SincethereportwaspublishedlastweekGermanshavebeenrackingtheirbrainsoverallthesequestionsandmore.Nooneyethastheanswers.ButmanyGermansarealreadyconvincedthatnothingshortofa"culturalrevolution"throughouttheeducationsystemisnowrequired. [G]Theshameofit[finanewstudyofschoolpupils’performancebytheOECDGermanytheworld’sthird-biggesteconomicpowerthe"landofpoetsandthinkers"wasrankedamiserable21stoutof31countriesforthereadingabilitiesofits15-year-olds20thinmathematicsand20thinscience.Acountrylongproud--andseeminglywithreason--ofitsrecordineducationhasbeenshownupasaDummkopf.Itsgovernmentandcitizensalikeareinatizzyofalarmandself-doubt. Order: 41
Forthosewhoregardtheal-JazeeraTVchannelasabiasedanti-westernmouthpieceforOsamabinLadentheannouncementthatitwillstartbroadcasting24hoursadayinEnglishnextyearwillbeunwelcome.ItslikeliestaudienceisMuslims1theMiddleEastwhodonotspeakArabic.Willal-Jazeera’sreportsofsufferingandrageinIraqandbeyondinspireanger2Americaandits3athometoo Thenewservicemayproveabitless4thanitsArabicsibling.NigelParsonsitsmanagingeditorsaysthatal-Jazeerahasbeentoostridenton5inthepastandthattheEnglishchannelwill6toredressthat.Itwillstrive7balancecredibilityandauthorityhesaysanditwillsignalanewmaturityforal-JazeerawhichwasstartedbytheemirofQatarin1996. Itwillbroadcastitsownoriginalcontent—newsdocumentariesandtalkshows—8studiosinDohaLondonandWashington9internationalnewsbeyondtheMiddleEast.especiallythedevelopingcountriesoften10byexistingEnglish-languagechannels. A1-Jazeeraisalreadyenjoyingafreshburstof11outsidetheMiddleEast.AroundthesametimethattheinterimgovernmentinIraqorderedittoshutitsbureauinBaghdadwesternersstartedwatching"ControlRoom"afilmsympathetic12thestationdirectedbyJehaneNoujaim.AtascreeninginLondonlastweekanaudienceoflocaljournalistslaughedalong13al-Jazeera’sreportersandeditors14the15oftheAmericanmilitary. Thebiggestmysteryaboutal-Jazeerasurrounditsfundingwhich"ControlRoom"sadlydidnot16.Qatarhasanew17intheworld18tothestation.Thatmaybewhytheemiriswillingtospend19anEnglish-languagechanneleven20theoriginalArabiconeisprobablylosingmoney. Readthefollowingtext.ChoosethebestwordsforeachnumberedblankandmarkABCorDonANSWERSHEET1.19
[A]WhatelsemightbewrongMoneyGermany’sspendingperpupilisabitbelowtheOECDaverage.ButsoisBritain’sandBritishpupilstothesurpriseofmanytherefiguredinthetopteninallthetests.TheorganisationofschoolingthenThatwouldbehardmjudge.Educationistheresponsibilityofthecountry’s16distinctLanderstatesandthevarioussystemstheyuserangefromthehighlyselectivetothefullycomprehensive. [B]Thereismoreofaclueperhapstobefoundintheteachingforceitself.Germany’sschool-teachersarerelativelywellpaidbuttheyaretoofew:Germanyhasoneofthehighestpupil-teacherratiosamongOECDcountriesandinmanysubjectsanacuteshortageofteachers.Norarenewonesflockingin:two-fifthsofallteachersareover50.Oneinthreeadmitstofeeling"burntout”;nearlythree-quarterstakeearlyretirementonhealthgrounds.Inevitablythequalityofteachingsuffers. [C]"Shocking""scandalous"and"catastrophic"politiciansparentsandeducatorshavewailedinunison.AndbeneaththeaveragefigureslieothersevenmoreshockingforGermany’sdeeplydemocraticburghers:evidenceofawidegap---oneofthewidestfoundbytheOECD’sresearchers--betweenGermany’shighest-performingstudentsanditslowest.Nearlyaquarterofits15-year-oldscouldnotreadandunderstandasimpletext.NotthatGermanycantakemuchcomfortfromtheachievementofitspupilsattheotherendofthescale.Only28%ofits15~year-oldsreachedthestudy’stoptwolevelsofreadingabilitycomparedwithhalfinFinlandwhichwasrankedfirstoverallandoverathirdinadozenothercountries. [D]Otherexplanationsabound.OneistheGermanzealforrotelearningratherthanforteachingchildrentothinkforthemselves.Anotheristheinadequatesupportgiventoweakerstudentsandtherequirementthatanypupilwhogetspoormarksinjusttwosubjectshastorepeatthewholeyear.Mostoftheother15-year-oldpupilsinvolvedintheOECDstudywereallinthesamegradehavinggoneupwiththeircontemporariesasagroup;theGerman15-year-oldsspannedfourgradesbecausesomanyhadhadtorepeatayearormore. [E]HowcanthisbeWhateverelseGermanyisfamousforitsthoroughness.Itstechnicaleducationwasoneofthewondersofthe19thcenturyandlongafter.WhathasgonewrongAlmostasalarmingasthefiguresnoonecantell.BlamingthelargenumberofstudentsofforeigndescentwhoaccountforoneintenpupilsinGermanschoolsisnotanadequateexcuse:German-speakingAustria—yeseasy-goingAustria-cametenthinthereadingtestsalthoughithasasimilarproportionofpupilsofforeigndescent. [F]SomepeopleblameGermany’scompressedschooldaywhichstartsat8amandusuallyendsat1.30pmor2pm.Manyparentswouldlikealaterstartandalongerday.SomeLanderaretryingoutall-dayschoolingbutsofaronlyonasmallscale.Thebigneedrunsanotherargumentisformorefleekindergartenplacestohelpinparticularchildrenfromnon-German-speakingimmigrantfamilies.Atthetopofthescaleithaslongbeenarguedthatmorepupilsshouldbeencouragedtogoontohighereducation.Atpresentonly28%dosocomparedwithanOECDaverageof45%—andonly16%emergetypicallysomesixyearslaterwithadegree.SincethereportwaspublishedlastweekGermanshavebeenrackingtheirbrainsoverallthesequestionsandmore.Nooneyethastheanswers.ButmanyGermansarealreadyconvincedthatnothingshortofa"culturalrevolution"throughouttheeducationsystemisnowrequired. [G]Theshameofit[finanewstudyofschoolpupils’performancebytheOECDGermanytheworld’sthird-biggesteconomicpowerthe"landofpoetsandthinkers"wasrankedamiserable21stoutof31countriesforthereadingabilitiesofits15-year-olds20thinmathematicsand20thinscience.Acountrylongproud--andseeminglywithreason--ofitsrecordineducationhasbeenshownupasaDummkopf.Itsgovernmentandcitizensalikeareinatizzyofalarmandself-doubt. Order: 45
Duringitsformativeyearstheinnersolarsystemwasarough-and-tumbleplace.Therewereacoupleofhundredlargeobjectsflyingaround.Moon-sizeorbiggerandformillionsofyearstheycollidedwithoneanother.Outoftheseimpactsgrewtheterrestrialplanets—MercuryVenusEarthwithitsMoonandMars—andtheasteroids. Scientistshavethoughtofthesecollisionsasmergers:asmallerobjecttheimpactorhitsalargeronethetargetandstickstoit.ButnewcomputermodelingbyErikAsphaugandCraigB.AgnoroftheUniversityofCaliforniaSantaCruzshowsthatthingsweren’tthatsimple."Mostofthetimetheimpactorandthetargetgooffontheirmerryways"Dr.Asphaugsaid.Abouthalfthecollisionsarethesehit-and-nmaffairs.NowthetworesearchersandacolleagueQuentinWilliams.havedonesimulationstostudytheeffectsofthesecollisionsontheimpactors.Theyarenotpretty. "Theimpactorssufferallkindsoffates"Dr.Asphaugsaid.Theyundergotremendousshearingandgravitationalforcesthatcancausethemtofractureintosmallerpiecesormeltcausingchemicalchangesinthematerialandlossofwaterorothervolatilecompounds.Orthecrustandcovercanbestrippedoff.leavingjustanembryonicironcore. TheresearcherswhosefindingsarepublishedinNaturediscoveredthattwoobjectsdidnotevenhavetocollidetocreateaneffectonthesmallerone.fromthegravitationalforcesofanear-collision.Duringthesimulations.Dr.Asphaugsaid"We’dlookandsay’Goshwejustgotridofthewholeatmosphereofthatplanetoid:itdidn’tevenhitanditsuckedthewholeatmosphereoff.’" Theresearcherssuggestthattheremainsofthesebeaten-upfracturedandmeltedobjectscanbefoundintheasteroidbelt.Dr.Asphaugsaidthatcouldexplaintheprevalenceof"ironrelics"inthebelt.SomeoftheseplanetoidremnantsalsoeventuallyhitEarth:thatwouldhelpexplainwhycertainmeteoriteslackwaterandothervolatileelements. Thehit-and-runcollisionmodelalsoprovidesanexplanationforVesta.alargeasteroidwithanintactcrustandcover.HowdidVestakeepitscoverwhilesomanyotherobjectswerelosingtheirsDr.AsphangsaiditcouldbethatVestawasalwaysthetargetnevertheimpactorandwasthuslessaffected."Itjusthadtoavoidbeingthehitter"hesaid"untilbiggerobjectsleftthesystem." Accordingtothehit-and-nmcollisionmodelVestakeepsitscoverprobablybecause
设文件F1的当前引用计数值为1先建立F1的符号链接软链接文件F2再建立F1的硬链接文件F3然后删除F1此时F2和F3的引用计数值分别是
[A]WhatelsemightbewrongMoneyGermany’sspendingperpupilisabitbelowtheOECDaverage.ButsoisBritain’sandBritishpupilstothesurpriseofmanytherefiguredinthetopteninallthetests.TheorganisationofschoolingthenThatwouldbehardmjudge.Educationistheresponsibilityofthecountry’s16distinctLanderstatesandthevarioussystemstheyuserangefromthehighlyselectivetothefullycomprehensive. [B]Thereismoreofaclueperhapstobefoundintheteachingforceitself.Germany’sschool-teachersarerelativelywellpaidbuttheyaretoofew:Germanyhasoneofthehighestpupil-teacherratiosamongOECDcountriesandinmanysubjectsanacuteshortageofteachers.Norarenewonesflockingin:two-fifthsofallteachersareover50.Oneinthreeadmitstofeeling"burntout”;nearlythree-quarterstakeearlyretirementonhealthgrounds.Inevitablythequalityofteachingsuffers. [C]"Shocking""scandalous"and"catastrophic"politiciansparentsandeducatorshavewailedinunison.AndbeneaththeaveragefigureslieothersevenmoreshockingforGermany’sdeeplydemocraticburghers:evidenceofawidegap---oneofthewidestfoundbytheOECD’sresearchers--betweenGermany’shighest-performingstudentsanditslowest.Nearlyaquarterofits15-year-oldscouldnotreadandunderstandasimpletext.NotthatGermanycantakemuchcomfortfromtheachievementofitspupilsattheotherendofthescale.Only28%ofits15~year-oldsreachedthestudy’stoptwolevelsofreadingabilitycomparedwithhalfinFinlandwhichwasrankedfirstoverallandoverathirdinadozenothercountries. [D]Otherexplanationsabound.OneistheGermanzealforrotelearningratherthanforteachingchildrentothinkforthemselves.Anotheristheinadequatesupportgiventoweakerstudentsandtherequirementthatanypupilwhogetspoormarksinjusttwosubjectshastorepeatthewholeyear.Mostoftheother15-year-oldpupilsinvolvedintheOECDstudywereallinthesamegradehavinggoneupwiththeircontemporariesasagroup;theGerman15-year-oldsspannedfourgradesbecausesomanyhadhadtorepeatayearormore. [E]HowcanthisbeWhateverelseGermanyisfamousforitsthoroughness.Itstechnicaleducationwasoneofthewondersofthe19thcenturyandlongafter.WhathasgonewrongAlmostasalarmingasthefiguresnoonecantell.BlamingthelargenumberofstudentsofforeigndescentwhoaccountforoneintenpupilsinGermanschoolsisnotanadequateexcuse:German-speakingAustria—yeseasy-goingAustria-cametenthinthereadingtestsalthoughithasasimilarproportionofpupilsofforeigndescent. [F]SomepeopleblameGermany’scompressedschooldaywhichstartsat8amandusuallyendsat1.30pmor2pm.Manyparentswouldlikealaterstartandalongerday.SomeLanderaretryingoutall-dayschoolingbutsofaronlyonasmallscale.Thebigneedrunsanotherargumentisformorefleekindergartenplacestohelpinparticularchildrenfromnon-German-speakingimmigrantfamilies.Atthetopofthescaleithaslongbeenarguedthatmorepupilsshouldbeencouragedtogoontohighereducation.Atpresentonly28%dosocomparedwithanOECDaverageof45%—andonly16%emergetypicallysomesixyearslaterwithadegree.SincethereportwaspublishedlastweekGermanshavebeenrackingtheirbrainsoverallthesequestionsandmore.Nooneyethastheanswers.ButmanyGermansarealreadyconvincedthatnothingshortofa"culturalrevolution"throughouttheeducationsystemisnowrequired. [G]Theshameofit[finanewstudyofschoolpupils’performancebytheOECDGermanytheworld’sthird-biggesteconomicpowerthe"landofpoetsandthinkers"wasrankedamiserable21stoutof31countriesforthereadingabilitiesofits15-year-olds20thinmathematicsand20thinscience.Acountrylongproud--andseeminglywithreason--ofitsrecordineducationhasbeenshownupasaDummkopf.Itsgovernmentandcitizensalikeareinatizzyofalarmandself-doubt. Order: 43
字长16位的补码定点小数的表示范围是
已知10个数据元素为54281634736295602343按照依次插入结点的方法生成一棵二叉排序树后查找值为62的结点所需比较的次数为
Directions: Youheardthatoneofyourfriendshasbeenacceptedbyaforeignuniversity.Writealetterofcongratulationsincluding1yourcongratulations;2someadvice;3remindinghimtokeepintouchwithyou.YoushouldwriteaboutI00words.Donotsignyourownnameattheendoftheletter.Use"LiMing"instead.Youdonotneedtowritetheaddress.
同步通信比异步通信数据传输率高的原因是
StephenColbert’sperformanceattheWhiteHouseCorrespondentsDinnerninedaysagohasalreadycreatedadebateoverpoliticsthepressandhumor.Nowacommercialrivalryhasbrokenoutoveritsrebroadcast. OnWednesdayC-SpanthenonprofitnetworkthatfirstshowedMr.Colbert’sspeechwroteletterstothevideositesYouTube.comandifilm.comdemandingthattheclipsofthespeechbetakenofftheirWebsites.TheactionwasafirstforC-Spanwhoseprime-timescheduletendstofeatureeventslikeCongressionalhearingsonautofuel-economystandards. "Wehavehadotherhot—Ihatetousethatword—videosthatgeneratedalotofbuzz"saidRobKennedyexecutivevicepresidentofC-Spanwhichwasfoundedin1979."Butthisisthefirsttimeithasoccurredsincetheadventofthevideoclippingsites." AftertheclipsofMr.Colbert’sperformancewereorderedtakendownatYouTube—where41clipsofthespeechhadbeenviewedatotalof2.7milliontimesinlessthan48hoursaccordingtothesite—therewererumblingsonleft-wingsitesthatsomeonewastryingtosilenceamanwhodaredtospeaktruthtopower. Butasbecameclearlaterintheweek.thiswasabusinessdecisionnotapoliticalone.NotonlyistheentireeventavailabletobestreamedatC-Span’sWebsite.c-spanorgbutthenetworkissellingDVD’softheeventfor$24.95includingspeechesandacomedyroutinebyPresidentBushwithaPresidentBushimitator. AndC-SpangavepermissiontoGoogleVideostocarrytheColbertspeechbeginningFriday.ThearrangementwhichcamewiththestipulationthatGoogleVideosprovidetheentireeventandaclipofMr.Bush’sentireroutineaswellisaone-timedeal.PeterChaneseniorproductmanagerofGoogleVideosaid"C-Spanhassomeveryveryuniquecontent"addingthat"onlineisreallygreatdistributionoutlet". ButJulieSupanseniordirectorformarketingatYouTubesaidofficialstherewerestungbyC-Span’sbehaviorbecauseshesaidthesitehadhelpedfuelmomentumfortheColbertclip. "Thiswasanexcitingmomentfortheminaviralrandomway"shesaid."Totakeitdownfromonesiteanduplodingonanotheritisperplexing." C-spanaskedthosevideositestotakeofftheclipsofStephenColbert’sspeechbecause
Zimbabweanscopewiththeshortageofthedollarsthatcountinvariousways.Thegovernmentgrabsthemfromotherpeople.OnFebruary9th.ittoldthecountry’sbankstostartsellingalltheirhard-currencyinflowstothecentralbankandthestatepetrol-importingmonopolyattheofficialrate.ItsaidthatZimbabweanembassiesabroadfacepowercutsbecausetheycannotpaytheirbills.ButifstaffinMoscowfeltchillythegrabdidnotwarmthem.Exporterstoldtheircustomerstodelaypayments. Hard-currencyinflowsfellbysome90%forcingthegovernmenttorelent. Businessfolkwererelieved.TheeconomyissostormythatmanyexportersstayafloatonlybysellingAmericandollarsontheblackmarket.Otherstrytokeeptheirforeignearningsoffshore.Thisisnoteasysincemostselltobaccogoldrosesandothergoodsthatcanbeobservedandrecordedastheyleavethecountry.Butsomequietlysetupoverseassubsidiariestobuytheirownproductsatartificiallylowprices.Thesubsidiarythensellsthegoodsmtherealbuyerandkeepstheproceedsabroad. Sincepetrolwhichmustbeimportedisscarcesomeemployersgivetheirstaffbicycles.Butthetwolocalbicyclemakershavegonebankruptsobicyclesmustbeimportedtoo.Wherepossiblelocalproductsarereplacedforimports.Onefirmforexamplehasdevisedawaytomakeglueusingoilfromlocally-growncastorbeansinsteadofpetroleum-basedchemicals.Buteventhesimplestproductsoftenhaveimportedcomponents.Onemanufacturerfounditcouldnotmakefirst-aidkitsbecauseitcouldnotobtainzipsforthebags.Thelocalzip-makerhadnodollarstoimportsmallbutessentialmetalstuds.Anorderworth$8000waslostforwantofperhaps$100inhardcash. Richindividualsareputtingtheirsavingsintotangibleassetsthoughnothousesorlandwhichtheyfearthegovernmentmayseize.Insteadtheybuymovablegoodssuchascarsorjewellery.UnliketheZimbabweandollarsuchassetsdonotlosehalftheirvalueeveryyear.Jewelleryisalsoaneasywaymmovemoneyabroad.WearitontheplanesellitinLondon.andleavethemoneythere.Thepoorhavefeweroptions.Atypicalunskilledwagenowbuysaloafofbreadandalitreofmilkadayplusthebusfaretowork.FormostpoorZimbabweanstheonlymeasureagainstinflationistoplantmaizeinthebackyardandhopetheycanharvestitbeforetheirlandlordexpelsthem. Theexampleofzipsreflects
Zimbabweanscopewiththeshortageofthedollarsthatcountinvariousways.Thegovernmentgrabsthemfromotherpeople.OnFebruary9th.ittoldthecountry’sbankstostartsellingalltheirhard-currencyinflowstothecentralbankandthestatepetrol-importingmonopolyattheofficialrate.ItsaidthatZimbabweanembassiesabroadfacepowercutsbecausetheycannotpaytheirbills.ButifstaffinMoscowfeltchillythegrabdidnotwarmthem.Exporterstoldtheircustomerstodelaypayments. Hard-currencyinflowsfellbysome90%forcingthegovernmenttorelent. Businessfolkwererelieved.TheeconomyissostormythatmanyexportersstayafloatonlybysellingAmericandollarsontheblackmarket.Otherstrytokeeptheirforeignearningsoffshore.Thisisnoteasysincemostselltobaccogoldrosesandothergoodsthatcanbeobservedandrecordedastheyleavethecountry.Butsomequietlysetupoverseassubsidiariestobuytheirownproductsatartificiallylowprices.Thesubsidiarythensellsthegoodsmtherealbuyerandkeepstheproceedsabroad. Sincepetrolwhichmustbeimportedisscarcesomeemployersgivetheirstaffbicycles.Butthetwolocalbicyclemakershavegonebankruptsobicyclesmustbeimportedtoo.Wherepossiblelocalproductsarereplacedforimports.Onefirmforexamplehasdevisedawaytomakeglueusingoilfromlocally-growncastorbeansinsteadofpetroleum-basedchemicals.Buteventhesimplestproductsoftenhaveimportedcomponents.Onemanufacturerfounditcouldnotmakefirst-aidkitsbecauseitcouldnotobtainzipsforthebags.Thelocalzip-makerhadnodollarstoimportsmallbutessentialmetalstuds.Anorderworth$8000waslostforwantofperhaps$100inhardcash. Richindividualsareputtingtheirsavingsintotangibleassetsthoughnothousesorlandwhichtheyfearthegovernmentmayseize.Insteadtheybuymovablegoodssuchascarsorjewellery.UnliketheZimbabweandollarsuchassetsdonotlosehalftheirvalueeveryyear.Jewelleryisalsoaneasywaymmovemoneyabroad.WearitontheplanesellitinLondon.andleavethemoneythere.Thepoorhavefeweroptions.Atypicalunskilledwagenowbuysaloafofbreadandalitreofmilkadayplusthebusfaretowork.FormostpoorZimbabweanstheonlymeasureagainstinflationistoplantmaizeinthebackyardandhopetheycanharvestitbeforetheirlandlordexpelsthem. WhichoneisNOTtrueabouteffectsresultedfromeconomicproblemsinZimbabwea
Zimbabweanscopewiththeshortageofthedollarsthatcountinvariousways.Thegovernmentgrabsthemfromotherpeople.OnFebruary9th.ittoldthecountry’sbankstostartsellingalltheirhard-currencyinflowstothecentralbankandthestatepetrol-importingmonopolyattheofficialrate.ItsaidthatZimbabweanembassiesabroadfacepowercutsbecausetheycannotpaytheirbills.ButifstaffinMoscowfeltchillythegrabdidnotwarmthem.Exporterstoldtheircustomerstodelaypayments. Hard-currencyinflowsfellbysome90%forcingthegovernmenttorelent. Businessfolkwererelieved.TheeconomyissostormythatmanyexportersstayafloatonlybysellingAmericandollarsontheblackmarket.Otherstrytokeeptheirforeignearningsoffshore.Thisisnoteasysincemostselltobaccogoldrosesandothergoodsthatcanbeobservedandrecordedastheyleavethecountry.Butsomequietlysetupoverseassubsidiariestobuytheirownproductsatartificiallylowprices.Thesubsidiarythensellsthegoodsmtherealbuyerandkeepstheproceedsabroad. Sincepetrolwhichmustbeimportedisscarcesomeemployersgivetheirstaffbicycles.Butthetwolocalbicyclemakershavegonebankruptsobicyclesmustbeimportedtoo.Wherepossiblelocalproductsarereplacedforimports.Onefirmforexamplehasdevisedawaytomakeglueusingoilfromlocally-growncastorbeansinsteadofpetroleum-basedchemicals.Buteventhesimplestproductsoftenhaveimportedcomponents.Onemanufacturerfounditcouldnotmakefirst-aidkitsbecauseitcouldnotobtainzipsforthebags.Thelocalzip-makerhadnodollarstoimportsmallbutessentialmetalstuds.Anorderworth$8000waslostforwantofperhaps$100inhardcash. Richindividualsareputtingtheirsavingsintotangibleassetsthoughnothousesorlandwhichtheyfearthegovernmentmayseize.Insteadtheybuymovablegoodssuchascarsorjewellery.UnliketheZimbabweandollarsuchassetsdonotlosehalftheirvalueeveryyear.Jewelleryisalsoaneasywaymmovemoneyabroad.WearitontheplanesellitinLondon.andleavethemoneythere.Thepoorhavefeweroptions.Atypicalunskilledwagenowbuysaloafofbreadandalitreofmilkadayplusthebusfaretowork.FormostpoorZimbabweanstheonlymeasureagainstinflationistoplantmaizeinthebackyardandhopetheycanharvestitbeforetheirlandlordexpelsthem. ButifstaffinMoscowfeltchillythegrabdidnotwarmthem.meansthemeasuregovernmentadoptedis
设有13个值用它们组成一棵哈夫曼树则该哈夫曼树共有个结点
一个C类地址采用了255.255.255.240作为子网掩码那么这个C类地址可以划分为个子网
设高度为H的二叉树上只有度为0和度为2的结点则此类二叉树中所包含的结点数至少为
把程序地址空间中使用的逻辑地址变成内存中物理地址称为
在含有n个关键字的大顶堆中关键字最小的记录有可能存储在位置上
补码定点小数除法中被除数和除数应满足
EnzoFerrariisnotwellknownoutsideItaly.46EvanashiscarswereracingtovictoryallovertheworldthemanatthehelmoftheracingteampreferredtostayinModenaandwatchtheracesontelevisionathome.ThisintimateaccountofFerrari’searlydaysandhisemergenceasthespiritbehindtheteamfillsthegapneatly. Ferrari.nowownedbyFiathaslongbeensynonymouswithFormulaOneracing.47OvertheyearsMcLarenBenettonandWilliamsmaybetweenthemhavewonmoreracesbutitistheglamouraswellasthesingularsuccessofFerrarithatdrawsthecrowds.AsayoungmanFerrarihadneitherthemoneynorthekillerinstincttobecomeoneofthegreatracingdrivers."Ifyouwantspectacularresultsyouhavetoknowhowtotreatyourcarbadly.ThefactisIdon’tdrivejusttogetfromAtoB.Ienjoyfeelingthecar’sreactionsbecomingpartofit.Icouldn’tinflictsufferingonit."WhatFerrarilikedwastobe"anagitatorofmen". ThefirstFerrariteamracedAlfaRomeosthoughthepartnershipdidnotlast.48In1947Ferrarirelaunchedonhisownmakingthefirstofthecarsthatwouldwearthebadgeoftheblackprancinghorseonayellowbackground.Bytheearly1950sinthehandsofsuchdriversasAlbertoAscariandJuanFangioFerrariswereleadingtheworldchampionships.MeanwhileLuigiChinettiagreatsalesmanpersuadedFerrarithatroadversionsofthecarswouldsellwelltorichAmericans.InItalyroadFerrarisbecamethefilmstar’smust-havecarinCinecitta.49RobertoRossellinievengottodriveoneinthefamousMilleMigliabeforehiswifeIngridBergmanpersuadedhimtoabandontheracehalfwaythroughinRome. 50TheaccountsofearlyracessuchastheMilleMigliafromBresciatoRomeandbackandTazioNuvolari’swininaFerrari-runAlfaRomeoatNurburgringinGermanyin1935areamongthehighlightsofRichardWilliams’sbook.AstheItaliancrossedthewinninglineHitler’ssportsministergroundhisteethandcrumpledhispreparedspeechlaudingaMercedesvictory.MrWilliamsisatalentedwriter;helovesItalyandmotorracingandhispassionforbothshinesthrough. RobertoRossellinievengottodriveoneinthefamousMilleMigliabeforehiswifeIngridBergmanpersuadedhimtoabandontheracehalfwaythroughinRome.
Duringitsformativeyearstheinnersolarsystemwasarough-and-tumbleplace.Therewereacoupleofhundredlargeobjectsflyingaround.Moon-sizeorbiggerandformillionsofyearstheycollidedwithoneanother.Outoftheseimpactsgrewtheterrestrialplanets—MercuryVenusEarthwithitsMoonandMars—andtheasteroids. Scientistshavethoughtofthesecollisionsasmergers:asmallerobjecttheimpactorhitsalargeronethetargetandstickstoit.ButnewcomputermodelingbyErikAsphaugandCraigB.AgnoroftheUniversityofCaliforniaSantaCruzshowsthatthingsweren’tthatsimple."Mostofthetimetheimpactorandthetargetgooffontheirmerryways"Dr.Asphaugsaid.Abouthalfthecollisionsarethesehit-and-nmaffairs.NowthetworesearchersandacolleagueQuentinWilliams.havedonesimulationstostudytheeffectsofthesecollisionsontheimpactors.Theyarenotpretty. "Theimpactorssufferallkindsoffates"Dr.Asphaugsaid.Theyundergotremendousshearingandgravitationalforcesthatcancausethemtofractureintosmallerpiecesormeltcausingchemicalchangesinthematerialandlossofwaterorothervolatilecompounds.Orthecrustandcovercanbestrippedoff.leavingjustanembryonicironcore. TheresearcherswhosefindingsarepublishedinNaturediscoveredthattwoobjectsdidnotevenhavetocollidetocreateaneffectonthesmallerone.fromthegravitationalforcesofanear-collision.Duringthesimulations.Dr.Asphaugsaid"We’dlookandsay’Goshwejustgotridofthewholeatmosphereofthatplanetoid:itdidn’tevenhitanditsuckedthewholeatmosphereoff.’" Theresearcherssuggestthattheremainsofthesebeaten-upfracturedandmeltedobjectscanbefoundintheasteroidbelt.Dr.Asphaugsaidthatcouldexplaintheprevalenceof"ironrelics"inthebelt.SomeoftheseplanetoidremnantsalsoeventuallyhitEarth:thatwouldhelpexplainwhycertainmeteoriteslackwaterandothervolatileelements. Thehit-and-runcollisionmodelalsoprovidesanexplanationforVesta.alargeasteroidwithanintactcrustandcover.HowdidVestakeepitscoverwhilesomanyotherobjectswerelosingtheirsDr.AsphangsaiditcouldbethatVestawasalwaysthetargetnevertheimpactorandwasthuslessaffected."Itjusthadtoavoidbeingthehitter"hesaid"untilbiggerobjectsleftthesystem." Inthelastsentenceofthesecondparagraphtheyrefersto
StephenColbert’sperformanceattheWhiteHouseCorrespondentsDinnerninedaysagohasalreadycreatedadebateoverpoliticsthepressandhumor.Nowacommercialrivalryhasbrokenoutoveritsrebroadcast. OnWednesdayC-SpanthenonprofitnetworkthatfirstshowedMr.Colbert’sspeechwroteletterstothevideositesYouTube.comandifilm.comdemandingthattheclipsofthespeechbetakenofftheirWebsites.TheactionwasafirstforC-Spanwhoseprime-timescheduletendstofeatureeventslikeCongressionalhearingsonautofuel-economystandards. "Wehavehadotherhot—Ihatetousethatword—videosthatgeneratedalotofbuzz"saidRobKennedyexecutivevicepresidentofC-Spanwhichwasfoundedin1979."Butthisisthefirsttimeithasoccurredsincetheadventofthevideoclippingsites." AftertheclipsofMr.Colbert’sperformancewereorderedtakendownatYouTube—where41clipsofthespeechhadbeenviewedatotalof2.7milliontimesinlessthan48hoursaccordingtothesite—therewererumblingsonleft-wingsitesthatsomeonewastryingtosilenceamanwhodaredtospeaktruthtopower. Butasbecameclearlaterintheweek.thiswasabusinessdecisionnotapoliticalone.NotonlyistheentireeventavailabletobestreamedatC-Span’sWebsite.c-spanorgbutthenetworkissellingDVD’softheeventfor$24.95includingspeechesandacomedyroutinebyPresidentBushwithaPresidentBushimitator. AndC-SpangavepermissiontoGoogleVideostocarrytheColbertspeechbeginningFriday.ThearrangementwhichcamewiththestipulationthatGoogleVideosprovidetheentireeventandaclipofMr.Bush’sentireroutineaswellisaone-timedeal.PeterChaneseniorproductmanagerofGoogleVideosaid"C-Spanhassomeveryveryuniquecontent"addingthat"onlineisreallygreatdistributionoutlet". ButJulieSupanseniordirectorformarketingatYouTubesaidofficialstherewerestungbyC-Span’sbehaviorbecauseshesaidthesitehadhelpedfuelmomentumfortheColbertclip. "Thiswasanexcitingmomentfortheminaviralrandomway"shesaid."Totakeitdownfromonesiteanduplodingonanotheritisperplexing." ThewordstipulationLine2.Para.6implies
Cloudsmayhavesilverliningsbuteventhesunniestofusseldomglimpsethemonfoot.ThemarvelousBlurBuildingthathoversabovethelakeofYverdonlesBainsinSwitzerlandprovidessuchanopportunity.Itgivesanyonewhohaseverwantedtostepintothecloudstheywatchfromtheairplanewindowachancetorealizetheirdream.Visitorswearwaterproofponchosbeforesettingoffalongawalkwayabovethelakethattakesthemintothefoggyatmosphereofthecloud.Theexperienceofphysicalformsblurringbeforeyoureyesasyouenterthecloudisbothdisorientatingandliberating.Howeverfirmlyyourfeetareplantedontheflooritishardtoescapethesensationoffloating.Ontheupperdeckofthisspaceship-shapedstructuretheAngelBaratranslucentcounterlitintonesofaqueousbluebeckonswithadozendifferentkindsofmineralwater. ToenterthissublimebuildingsituatedinthelandscapeoftheSwissAlpsfeelslikewalkingintoapoem—itispartofnaturebutremovedfromrealityItsarchitectsElizabethDillerandRicardoScofidioofNewYorkdesigneditasapavilionfortheSwissExpo2002intheThreeLakesregionofSwitzerlandanhour’strainridefromGenevawhichfeaturesaseriesofexhibitsonthelakes.TheBlurBuildingiseasilythemostsuccessful.IndeedyoucanskiptherestoftheExpo—aSwisskitschversionofBritain’sMillenniumDome—andheadstraightforthecloudwhichisthereuntiltheendofOctober. Thearchitectsaskedthemselveswhatwastheidealmaterialforbuildingonalakeanddecidedonwateritself.’theelementofthelakethesnow.theriversandthemistaboveit.Theywantedtoplayonandlaybarethenotionofaworld’sfairpavilionbycreatinganetherealghostofoneinwhichthereisnothingtosee.Theresultisarefugefromthesurveillancecamerasandhigh-definitionimagesofoureverydayworld—aparticularteaseinSwitzerlandwhereclarityandprecisionaresoprized.Anti-architectureornottheBlurBuildingcostacool$7.5million. Out-of-the-boxthinkingisatrademarkofDiller+Scofidio.ahusband-and-wifeteamofarchitectureprofessorswhobecamethefirstarchitectstowinageniusgrantfromtheMacArthurFoundationin1999.Althoughtheyhavebuiltverylittletheyareinterestedinthesocialexperienceofarchitectureinchallengingpeople’sideasaboutbuildings.Theytreatarchitectureasananalyticalartformthatcombinesotherdisciplinessuchasvisualartandphotographydanceandtheatre. TorealizeitsUtopianpoetrytheBlurBuildinghastobetechnologicallystate-of-the-art.Waterfromthelakeispumpedthrough32.000fognozzlespositionedthroughouttheskeleton-likestainlesssteelstructure;sothebuildingdoesnotjustlooklikeacloudontheoutsideitfeelslikeacloudontheinside.Andwhilethe300-foot-wideplatformcanaccommodateupto400peoplevisitorsvanishfromeachotherinthemistataboutfivepacessoyoureallycanwanderlonelyasacloud.Wordsworthmustbesmiling. Theexpressionout-of-the-boxLine1.Para.4mostprobablymeans
下列说法中正确的是
Cloudsmayhavesilverliningsbuteventhesunniestofusseldomglimpsethemonfoot.ThemarvelousBlurBuildingthathoversabovethelakeofYverdonlesBainsinSwitzerlandprovidessuchanopportunity.Itgivesanyonewhohaseverwantedtostepintothecloudstheywatchfromtheairplanewindowachancetorealizetheirdream.Visitorswearwaterproofponchosbeforesettingoffalongawalkwayabovethelakethattakesthemintothefoggyatmosphereofthecloud.Theexperienceofphysicalformsblurringbeforeyoureyesasyouenterthecloudisbothdisorientatingandliberating.Howeverfirmlyyourfeetareplantedontheflooritishardtoescapethesensationoffloating.Ontheupperdeckofthisspaceship-shapedstructuretheAngelBaratranslucentcounterlitintonesofaqueousbluebeckonswithadozendifferentkindsofmineralwater. ToenterthissublimebuildingsituatedinthelandscapeoftheSwissAlpsfeelslikewalkingintoapoem—itispartofnaturebutremovedfromrealityItsarchitectsElizabethDillerandRicardoScofidioofNewYorkdesigneditasapavilionfortheSwissExpo2002intheThreeLakesregionofSwitzerlandanhour’strainridefromGenevawhichfeaturesaseriesofexhibitsonthelakes.TheBlurBuildingiseasilythemostsuccessful.IndeedyoucanskiptherestoftheExpo—aSwisskitschversionofBritain’sMillenniumDome—andheadstraightforthecloudwhichisthereuntiltheendofOctober. Thearchitectsaskedthemselveswhatwastheidealmaterialforbuildingonalakeanddecidedonwateritself.’theelementofthelakethesnow.theriversandthemistaboveit.Theywantedtoplayonandlaybarethenotionofaworld’sfairpavilionbycreatinganetherealghostofoneinwhichthereisnothingtosee.Theresultisarefugefromthesurveillancecamerasandhigh-definitionimagesofoureverydayworld—aparticularteaseinSwitzerlandwhereclarityandprecisionaresoprized.Anti-architectureornottheBlurBuildingcostacool$7.5million. Out-of-the-boxthinkingisatrademarkofDiller+Scofidio.ahusband-and-wifeteamofarchitectureprofessorswhobecamethefirstarchitectstowinageniusgrantfromtheMacArthurFoundationin1999.Althoughtheyhavebuiltverylittletheyareinterestedinthesocialexperienceofarchitectureinchallengingpeople’sideasaboutbuildings.Theytreatarchitectureasananalyticalartformthatcombinesotherdisciplinessuchasvisualartandphotographydanceandtheatre. TorealizeitsUtopianpoetrytheBlurBuildinghastobetechnologicallystate-of-the-art.Waterfromthelakeispumpedthrough32.000fognozzlespositionedthroughouttheskeleton-likestainlesssteelstructure;sothebuildingdoesnotjustlooklikeacloudontheoutsideitfeelslikeacloudontheinside.Andwhilethe300-foot-wideplatformcanaccommodateupto400peoplevisitorsvanishfromeachotherinthemistataboutfivepacessoyoureallycanwanderlonelyasacloud.Wordsworthmustbesmiling. WhichoneisNOTtrueaboutthebuilding
实时系统中的进程调度通常采用算法
下列说法正确的是
EnzoFerrariisnotwellknownoutsideItaly.46EvanashiscarswereracingtovictoryallovertheworldthemanatthehelmoftheracingteampreferredtostayinModenaandwatchtheracesontelevisionathome.ThisintimateaccountofFerrari’searlydaysandhisemergenceasthespiritbehindtheteamfillsthegapneatly. Ferrari.nowownedbyFiathaslongbeensynonymouswithFormulaOneracing.47OvertheyearsMcLarenBenettonandWilliamsmaybetweenthemhavewonmoreracesbutitistheglamouraswellasthesingularsuccessofFerrarithatdrawsthecrowds.AsayoungmanFerrarihadneitherthemoneynorthekillerinstincttobecomeoneofthegreatracingdrivers."Ifyouwantspectacularresultsyouhavetoknowhowtotreatyourcarbadly.ThefactisIdon’tdrivejusttogetfromAtoB.Ienjoyfeelingthecar’sreactionsbecomingpartofit.Icouldn’tinflictsufferingonit."WhatFerrarilikedwastobe"anagitatorofmen". ThefirstFerrariteamracedAlfaRomeosthoughthepartnershipdidnotlast.48In1947Ferrarirelaunchedonhisownmakingthefirstofthecarsthatwouldwearthebadgeoftheblackprancinghorseonayellowbackground.Bytheearly1950sinthehandsofsuchdriversasAlbertoAscariandJuanFangioFerrariswereleadingtheworldchampionships.MeanwhileLuigiChinettiagreatsalesmanpersuadedFerrarithatroadversionsofthecarswouldsellwelltorichAmericans.InItalyroadFerrarisbecamethefilmstar’smust-havecarinCinecitta.49RobertoRossellinievengottodriveoneinthefamousMilleMigliabeforehiswifeIngridBergmanpersuadedhimtoabandontheracehalfwaythroughinRome. 50TheaccountsofearlyracessuchastheMilleMigliafromBresciatoRomeandbackandTazioNuvolari’swininaFerrari-runAlfaRomeoatNurburgringinGermanyin1935areamongthehighlightsofRichardWilliams’sbook.AstheItaliancrossedthewinninglineHitler’ssportsministergroundhisteethandcrumpledhispreparedspeechlaudingaMercedesvictory.MrWilliamsisatalentedwriter;helovesItalyandmotorracingandhispassionforbothshinesthrough. OvertheyearsMcLarenBenettonandWilliamsmaybetweenthemhavewonmoreracesbutitistheglamouraswellasthesingularsuccessofFerrarithatdrawsthecrowds
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