[单选]  二、阅读理解：阅读下面的短文，根据文章内容从A、B、C三个选项中选出一个最佳选项。（课外选材）Whencomputerserversoperateacomplexprogram,theycangetveryhot.Coolingtheserverscanbecostly.Soresearchersaskedwhatwouldhappeniftheheatcreatedbytheserverscouldbecapturedandused?DatacentersoflargeInternetcompaniessuchasGoogleandMicrosofthavethousandsofcomputerservers.Astheseserversprocessinformation,theycreatelargeamountsofheat,sotheyneedhugecoolingsystems.Thesesystemssendtheheatintotheair.TheDutchcompanyNerdalizethinkspayingforelectricitytooperatetheserversandthenpayingagaintocoolthemisawasteofenergy.Soitdevelopedadevicecalledthee-Radiator.Itisacomputerserverthatalsoworksasaheatingsource.BoazLeupeisthechiefexecutiveofficerofNerdalize.Hesaysthee-Radiatorsavesmoneybecausecompaniesdon'thavetopaytocooltheirservers.“Thekilowatt（千瓦）houryouareusingisusedtwice--oncetoheatthehomeandoncetocomputetheclient'staskwithoutthecoolingoverhead.“HesaysfivehomeownersintheNetherlandsaretestingtheheatingdeviceintheirhomes.“Wereimbursetheelectricitytheserveruses,andthatwecandobecauseofthecomputerclientsontheotherside,and,inthatway,homeownersactuallygetheatingforfree,andcomputerusersdon'thavetopayfortheoverheadofthedatacenter.“JanVisserisoneoftheparticipantsintheyear-longexperiment.Hesaystheamountofheatproducedbythee-Radiatordependsontheworkbeingdonebythecomputerserver.Hesaysitcannotbeusedastheprimarysourceofheat.Butheisreadytotryit.Hesaysifitprovidesenoughwarmth,hewillbeabletousehishome'sheatingsystemless,whichwillsavehimmoney.Nerdalizesayse-Radiatorscreateheattemperaturesofupto55℃.Itsaysthedevicescouldsaveusersupto$440inheatingcostsayear. Whydidresearchersaskwhatwouldhappeniftheheatcreatedbytheserverscouldbecapturedandused?   A.Becausecomputerscangetveryhot.B.Computerserversisacomplexprogram.C.Coolingcomputerserverscostsalotofmoney.2.ThecomputerserversinlargeInternetcompaniessuchasGoogleandMicrosoftcan   .A.createlargeamountsofinformationB.createlargequantityofheatC.managethehugecoolingsystems3.Nerdalizedevelopedthee-Radiatorbecause   .A.e-RadiatorcostlessenergyB.e-RadiatorcancooltheserversforfreeC.e-Radiatorcancreatecoldairforfree4.AccordingtoJanVisser,theamountofheatproducedbythee-Radiator   .A.dependsontheworkbeingprocessedbyPCB.cannotbeusedasthehome'sheatingsystemC.cannotbeusedasthemainsourceofheat5.Thebesttitleforthispassageis   A.TheNewWaytoHeatHomesB.TheNewWaytoCoolHomesC.HotComputersCouldBeUsedforFree