2015年職稱英語理工類A級真題及答案

經(jīng)典word整理文檔，僅參考，雙擊此處可刪除頁眉頁腳。本資料屬于網(wǎng)絡(luò)整理，如有侵權(quán)，請聯(lián)系刪除，謝謝！2015年職稱英語理工類A級真題及答案第1部分：詞匯選項(xiàng)第～15題，每題1分，共15分)下面每個(gè)句子中均有1個(gè)詞或短語劃有底橫線，請為每處劃線部分確定1個(gè)意義最為接近的選項(xiàng)。1.Iwillnottoleratethatsortofbehaviorinmyclass.2.Sheshowedanaturalaptitudeforthework.3.Mostpeoplefindrejectionhardtoaccept.A.controlB.observeC.regulateD.acceptA.senseB.talentC.flavorD.tasteA.excuseB.clientC.refusalD.destiny4.Theorganizationwasboldenoughtofacethepress.5.Theywerelockedinmortalcombat.6.Wewereattractedbythelureofquickmoney.A.pleasedB.powerfulC.braveD.sensibleA.deadlyB.openC.actualD.activeA.amountB.supplyC.temptD.sum7.Theprocedureswereperceivedascomplexandlesstransparent.8.TheStockExchangeisinturmoilfollowingahugewaveofselling.A.clearB.necessaryC.specialA.ServiceB.dangerC.disorderD.correctD.threat9.HebelievesthatEuropemustchangeoritwillperish.A.surviveB.lastC.dieD.move10.Therewasasimultaneoustrialtakingplaceinthenextbuild.A.fairB.fullC.coexistingD.public11.Theypromoteassimilationofethnicgroupsintothemain-streamculture.A.policyB.valueC.equalityD.integration12.Asalesman’scardinalruleistosatisfycustomers.A.principalB.officialC.simpleD.legal13.Imustcomplimentyouonyourhandlingofaverydifficultsituation.A.silenceB.praiseC.assureD.complainC.terribleD.Continuous14.Welivedforyearsinaperpetualstateoffear15.Thestarvingchildrenwereapatheticsight.第2部分：閱讀判斷第～22題，每題l分，共7分)A.emotionalB.nervousA.commonB.unexpectedC.unforgettableD.pitiful下面的短文后列出了7個(gè)句子，請根據(jù)短文的內(nèi)容對每個(gè)句子做出判斷：如果該句提供的是正確信息，請選擇如果該句提供的是錯誤信息，請選擇如果該句的信息文中沒有提及，請選擇C。LackofOxygenDelayedtheRiseofAnimalsonEarthScientistshavelongspeculatedastowhyanimalspeciesdidntflourishsooner,oncesufficientoxygencoveredtheEarth’ssurface.AnimalsbegantoprosperattheendoftheProterozoicperiod,about800millionyearsago—butwhataboutthebillion-yearstretchbeforethat,whenmostresearchersthinktherealsowasplentyofoxygen?Well,itseemstheairwasn’tsogreatthen,afterall.InastudypublishedOct.31inScience,YaleresearcherNoahPlanavskyandhiscolleaguesfoundthatoxygenlevelsduringthe“boring”periodwereonly0.1%ofwhattheyaretoday.Inotherwords,Earthsatmospherethavesupportedadiversityofcreatures,nomatterwhatgeneticadvancementswerepoisedtooccur.“Thereisnoquestionthatgeneticandecologicalinnovationmustultimatelybebehindtheriseofanimals,butitisequallyunavoidablethatanimalsneedacertainlevelofoxygen,”saidPlanavsky,co-leadauthoroftheresearchalongwithChristopherReinhardoftheGeorgiaInstituteofTechnology.“Wereprovidingthefirstevidencethatoxygenlevelswerelowenoughduringthisperiodtopotentiallypreventtheriseofanimals.”Thescientistsfoundtheirevidencebyanalyzingchromium(Cr)isotopesinancientsedimentsfromChina,Australia,Canada,andtheUnitedStates.ChromiumisfoundintheEarth’scontinentalcrust,andchromiumoxidationisdirectlylinkedtothepresenceoffreeoxygenintheatmosphere.Specifically,theteamstudiedsamplesdepositedinshallow,iron-richoceanareas,neartheshore.Theycomparedtheirdatawithothersamplestakenfromyoungerlocalesknowntohavehigherlevelsofoxygen.Oxygen’sroleincontrollingthefirstappearanceofanimalshaslongvexedscientists.“Weweremissingtherightapproachuntilnow,”Planavskysaid.“Chromiumgaveustheproxy.”Previousestimatesputtheoxygenlevelat40%oftoday’sconditionsduringpre-animaltimes,leavingopenthepossibilitythatoxygenwasalreadyplentifulenoughtosupportanimallife.Inthenewstudy,theresearchersacknowledgedthatoxygenlevels“highly”intheearlyatmosphere,withthepotentialforoccasionalspikes.However,theysaid,“Itseemsclearthatthereisafirst-orderdifferenceinthenatureofEarthsurfaceCrcycling”beforeandaftertheriseofanimals.“Ifweareright,ourresultswillreallychangehowpeopleviewtheoriginsofanimalsandothercomplexlife,andtheirrelationshipstotheco-evolvingenvironment,”saidco-authorTimLyonsoftheUniversityof“Thiscouldbeagamechanger.”“Theresalotofinterestrightnowinabroaderdiscussionsurroundingtherolethatenvironmentalstabilityplayedintheevolutionofcomplexlife,andwethinkourresultsareasignificantcontributiontothat,”Reinhardsaid.16.ThestudydiscoveredtheriseofanimalsoccurredearlierthantheProterozoicperiod.A.RightB.WrongC.Notmentioned17.Manyresearchersbelievetheoxygenlevelwashighduringpre-animaltimes.A.RightB.WrongC.NotmentionedC.Notmentioned18.Theteamwasfundedbyseveralresearchinstitutes.19.Geneticadvancementstriggeredtheriseofanimals.A.RightB.WrongA.RightB.WrongC.Notmentioned20.Thesamplesstudiedintheresearchwerecollectedinoceanareas.21.ThestudyrevealedthatchromiumfoundinEarth’scontinentalcrustremainedstablebeforeandaftertheriseofanimals.A.RightB.WrongC.NotmentionedA.RightB.WrongC.Notmentioned22.TimLyonslikedtoplaycomputergamesinhissparetime.A.RightB.WrongC.Notmentioned第3部分：概括大意與完成句子第—30題，每題1分，共8分)下面的短文后有2第23~26題要求從所給的6個(gè)選項(xiàng)中為第～5段每段選擇1個(gè)最佳標(biāo)題;(2)第～30題要求從所給的6個(gè)選項(xiàng)中為每個(gè)句子確定1個(gè)最佳選項(xiàng)。FirstImage-recognitionSoftware1.DartmouthresearchersandtheircolleagueshavecreatedanartificialintelligencesoftwarethatusesphotostolocatedocumentsontheInternetwithfargreateraccuracythaneverbefore.2.Thenewsystem,whichwastestedonphotosandisnowbeingappliedtovideos,showsforthefirsttimethatamachinelearningalgorithm(運(yùn)算法則)forimagerecognitionandretrievalisaccurateandefficientenoughtoimprovelarge-scaledocumentsearchesonline.Thesystemusespixel(像素)datainimagesandpotentiallyvideo—ratherthanjusttext—tolocatedocuments.Itlearnstorecognizethepixelsassociatedwithasearchphrasebystudyingtheresultsfromtext-basedimagesearchengines.Theknowledgegleaned(收集)fromthoseresultscanthenbeappliedtootherphotoswithouttagsorcaptions(圖片說明),makingformoreaccuratedocumentsearchresults.3."Overthelast30years,"saysAssociateProfessorLorenzoTorresani,aco-authorofthestudy,"theWebhasevolvedfromasmallcollectionofmostlytextdocumentstoamodern,massive,fast-growingmultimediadataset,wherenearlyeverypageincludesmultiplepicturesorvideos.WhenapersonlooksataWebpage,heimmediatelygetsthegist()ofitbylookingatthepicturesinit.Yet,surprisingly,allexistingpopularsearchengines,suchasGoogleorBing,stripawaytheinformationcontainedinthephotosanduseexclusivelythetextofWebpagestoperformthedocumentretrieval.Ourstudyisthefirsttoshowthatmodernmachinevisionsystemsareaccurateandefficientenoughtomakeeffectiveuseoftheinformationcontainedinimagepixelstoimprovedocumentsearch."4.Theresearchersdesignedandtestedamachinevisionsystem—atypeofartificialintelligencethatallowscomputerstolearnwithoutbeingexplicitlyprogrammed—thatextractssemantic語義的)informationfromthepixelsofphotosinWebpages.ThisinformationisusedtoenrichthedescriptionoftheHTMLpageusedbysearchenginesfordocumentretrieval.Theresearcherstestedtheirapproachusingmorethan600searchqueries(查詢)onadatabaseof50millionWebpages.Theyselectedthetext-retrievalsearchenginewiththebestperformanceandmodifiedittomakeuseoftheadditionalsemanticinformationextractedbytheirmethodfromthepicturesoftheWebpages.Theyfoundthatthisproduceda30percentimprovementinprecisionovertheoriginalsearchenginepurelybasedontext.23.Paragraph1____24.Paragraph2____25.Paragraph3____26.Paragraph4____A.FunctionofthenewsystemB.ImprovementindocumentretrievalC.PublicationofthenewdiscoveryD.ProblemsoftheexistingsearchenginesE.PopularityofthenewsystemF.Artificialintelligencesoftwarecreated27.Thenewsystemdoesdocumentretrievalby____.28.Thenewsystemisexpectedtoimproveprecisionin____.29.Whenperformingdocumentretrievaltheexistingsearchenginesignore____30.Thenewsystemwasfoundmoreeffectiveindocumentsearchthanthe____A.usingphotosE.informationinimages第4部分：閱讀理解第—45題，每題3分，共45分)B.descriptionoftheHTMLpageC.currentpopularsearchenginesD.documentsearchF.machinevisionsystems下面有3篇短文，每篇短文后有5道題。請根據(jù)短文內(nèi)容，為每題確定1個(gè)最佳選項(xiàng)。第一篇FaceMasksMayNotProtectfromSuper-FluIFasuper-flustrikes,facemasksmaynotprotectyou.Whetherwidespreaduseofmaskswillhelp,orharm,duringthenextworldwidefluoutbreakisaquestionthatresearchersarestudyingfuriously.Noresultshavecomefromtheirmaskresearchyet.However,thegovernmentsayspeopleshouldconsiderwearingthemincertainsituationsanyway,justincase.Butit’saquestionthepublickeepsaskingwhilethegovernmentaremakingpreparationsforthenextflupandemic.SotheCentersforDiseaseControlandPrevention(CDC)cameupwithpreliminaryguidelines.“We’twantpeoplewearingthemeverywhere,”saidtheCDC.“Theoverallrecommendationreallyistoavoidexposure.”Whenthat’snotpossible,theguidelinessaytoconsiderwearingasimplesurgicalmaskifyouareinoneofthethreefollowingsituations.First,yourehealthyandcantavoidgoingtoacrowdedplace.Secondtyouresickandthinkyoumayhaveclosecontactwiththehealthy,suchasafamilymembercheckingonyou.Third,youlivewithsomeonewho’ssickandthusmightbeintheearlystagesofinfection,butstillneedtogoout.Influenzapandemicscanstrikewhentheeasy-to-mutatefluvirusshiftstoastrainthatpeopleneverhaveexperienced.Scientistscannotpredictwhenthenextpandemicwillarrive,althoughconcernisrisingthattheAsianbirdflumighttriggeroneifitstartsspreadingeasilyfrompersontoperson.Duringtheflupandemic,youshouldprotectyourself.Avoidcrowds,andavoidclosecontactwiththesickunlessyoumustcareforsomeone.Why’tmasksaddedtothisself-protectionlist?Becausetheycanhelptrapvirus-ladendropletsflyingthroughtheairwithacoughorsneeze.Simplesurgicalmasksonlyfilterthelargerdroplets.Besides,theCDCisafraidmasksmaycreateafalsesenseofsecurity.Perhapssomeonewhoshouldhavestayedhomewoulddonanill-fittingmaskandhoponthesubwayinstead.Nordoesfluonlyspreadthroughtheair.Saysomeonecoversasneezewithhisorherhand,thentouchesadoorknoborsubwaypole.Ifyoutouchthatspotnextandthenputgermyhandsonyournoseormouth,youvebeenexposed.Itshardertorubyournosewhilewearingamaskandsoyourfacemaygetprettysweatyundermasks.Youreachundertowipethatsweat,andmaytransfergermscaughtontheoutsideofthemaskstraighttothenose.Thesearetheproblemsfacemasksmaycreatefortheirusers.Whetherpeopleshouldorshouldnotusefacemasksstillremainsaquestion.Thegeneralpublichastowaitpatientlyfortheresultsofthemaskresearchscientistsarestilldoing.31.Whatisthepassagemainlyabout?A.Widespreaduseoffacemasks.B.PossibilityofaworldwidefluoutbreakD.EffectivenessofwearingfacemasksC.Newdiscoveriesofafacemaskresearch.32.TheCDCsuggeststhatpeopleA.stayalonewhenbeingsick.B.wearfacemaskswhengoingtoacrowdedplace.C.wearfacemaskswhereverpossible.D.remainathomeiflivingwithsomeonewho’ssick.33.Theword"that"inParagraph3referstoA.makingpreparations.B.avoidingexposureC.comingupwithguidelines.D.wearingfacemaskseverywhere.34.Whichofthefollowingstatementsistrue?A.Scientistswarnthenextfluiscomingsoon.B.Asianbirdfluisspreadingeasilyfrompersontoperson.C.Masksprotectpeoplebecausetheykeepvirusesaway.35.OneoftheconcernstheCDChasisthatD.Masksarenoteffectiveifaflustrikes.A.masksmaygivepeopleawrongassumptionofbeingsafe.C.fluvirusmayspreadviapublictransportation.D.healthypeoplemaynotknowhowtoprotectthemselves.第二篇What’skillingtheBatsB.thesickmaynotwearmasksandgoout.Firstitwasbees.Nowitisbats.BiologistsinAmericaareworkinghardtodiscoverthecauseofthemysteriousdeathsoftensofthousandsofbatsinthenortheasternpartofthecountry.Mostofthebatsaffectedarethecommonlittlebrownbats(Myotislucifugus,)butotherspecies,suchasthelong-earedbat,thesmall-footedhat,theeasternpipistrelle,andtheIndianabathavealsobeenaffected.Insomecaves,morethan90percentofthebatpopulationshavedied.Onepossibilityisdisease.Awhitefungus(真菌)knownasfusariumhasbeenfoundonthenosesofbothlivinganddeadbats.However,scientistsdon'tknowIfthefungusistheprimarycauseofdeath,asecondarycauseofdeath,ornotacauseatall,buttheresultofsomeotherconditions.Anotherpossiblecauseisalackoffood.Forexample,batstypicallyeatalargenumberofmoths(蛾),andinsomestatessuchasNewYork,thenumberofmothshasbeendeclininginrecentyears.Ifbatseatenoughfood,theystarvetodeath.Stillotherscientistsbelievethatglobalwarmingistoblame.Warmertemperaturesinrecentyearshavebeenwakinguphibernating(冬眠)batsearlierthanusual.Ifbatsbreaktheirhibernationatthewrongtime,theymightnotfindtheirexpectedfoodsources.Theweathermightalsoturncoldagainandweakenorkillthebats.Scientistsmightnotagreeonthecausesofthebatdie-off,buttheydoagreeontheconsequences.Batsareanimportantpredatorofmosquitoes;asinglebrownbatcaneat1,000ormoreinsectsinanhour.Theyalsoeatbeetlesandotherinsectsthatdamageplantcrops.Iftherearen'tenoughbats,damagewillbegreatfromtheinsectstheyeatWhilebatslivealongtimefortheirsize一thelittlebrownbatcanliveformorethan30years一afemalebathasonlyonebabyperyear,sobatpopulationsgrowslowly.ManybatspeciesintheUnitedStatesarealreadyprotectedorendangered.Howcanyouhelp?Donotdisturbsleepingornestingbats.Ifyoudiscoverbatethatseemtobesickorthataredead,contactyourlocalFish&WildlifeDepartmentwiththedetails.However,becarefulnottotouchtheanimals.36.Whatisthemainideaofthispassage?A.AllspeciesofbatsinNorthAmericaaredying.C.Thebatdeathsareaseriousproblem.D.Therearemanypossiblecausesofthedeathsofbats.37.WhatdoesthefirstsentenceinParagraph1mean?A.Beeshavebeendyingmysteriously.B.Thefirstarticleonthewebsiteisaboutbees.D.Itwasbeesthatcausedthedeathsofbats.B.ScientistsalreadyknowthecauseofthedeathsofbatsC.Beesusuallydiebeforebats.38.Theword“pipistrelle"inParagraph1referstoA.akindoffungus.39.The"moths"inParagraph3aretakenasanexampleofA.diseasesthatkillbats.B.Insectsthatbatseat.C.animalsthathavediseases.D.batspeciesthatarestarvingtodeath.40.Whatisthepurposeofthelastparagraph?B.anareaintheU.S.C.aspecialcave.D.akindofbat.A.Togetpeopletostopkillingbats.B.TohireworkersfortheFish&WildlifeDepartment.D.Totellthepublichowtohelpbats.C.Toaskpeoplenottotouchdeadbats.第三篇BetterSolarEnergySystems:MoreHeat,MoreLightSolarphotovoltaicthermalenergysystems,orPVTs,generatebothheatandelectricity,butuntilnowtheyhaven’tbeenverygoodattheheat-generatingpartcomparedtoastand-alonesolarthermalcollector.That’sbecausetheyoperateatlowtemperaturestocoolcrystallinesiliconsolarcells,whichletsthesilicongeneratemoreelectricitybutisn’taveryefficientwaytogatherheat.Thatsaproblemofeconomics.Goodsolarhot-watersystemscanharvestmuchmoreenergythanasolar-electricsystematasubstantiallylowercost.Andit’salsoaspace：photovoltaiccellscantakeupallthespaceontheroof,leavinglittleroomforthermalapplications.Inapairofstudies,JoshuaPearce,anassociateprofessorofmaterialsscienceandengineering,hasdevisedasolutionintheformofabetterPVTmadewithadifferentkindofsilicon.HisresearchcollaboratorsareKunalGirotrafromThinSiliconinCaliforniaandMichaelPathakandStephenHarrisonfromQueen’sUniversity,Canada.Mostsolarpanelsaremadewithcrystallinesilicon，butyoucanalsomakesolarcellsoutofamorphoussilicon,commonlyknownasthin-filmsilicon.Theydon’tcreateasmuchelectricity,buttheyarelighter,flexible,andcheaper.And,becausetheyrequiremuchlesssilicon,theyhaveagreenerfootprint.Unfortunately，thin-filmsiliconsolarcellsarevulnerabletosomebad-newsphysicsintheformoftheStaebler-Wronskieffect.“Thatmeansthattheirefficiencydropswhenyouexposethemtolight—prettymuchtheworstpossibleeffectforasolarcell,”Pearceexplains，whichisoneofthereasonsthin-filmsolarpanelsmakeuponlyasmallfractionofthemarket.However,PearceandhisteamfoundawaytoengineeraroundtheStaebler-Wronskieffectbyincorporatingthin-filmsiliconinanewtypeofPVT.Youdonthavetocooldownthin-filmsilicontomakeitwork.InfactPearcesgroupdiscoveredthatbyheatingittosolar-thermaloperating，neartheboilingpointofwater,theycouldmakethickercellsthatlargelyovercametheStaebler-Wronskieffect.Whentheyappliedthethin-filmsilicondirectlytoasolarthermalenergycollector,theyalsofoundthatbybakingthecellonceaday，theyboostedthesolarcell’selectricalefficiencybyover10percent.41.PVTsarenotefficientinA.creatingelectricity.B.coolingsiliconsolarcells.C.generatingheat.D.poweringsolarthermalcollectors.42.OneoftheproblemsPVTshaveisthatA.theirthermalapplicationsarecostly.B.theyaretooexpensivetoafford.C.theyoccupytoomuchspace.43.WhichofthefollowingisNOTmentionedasanadvantageofthin-filmsiliconsolarcells?A.Theyareelectricallyefficient.B.Theyarelessexpensive.C.Theyareflexible.D.Theyareenvironmentfriendly.44.Thin-filmsolarpanelsdonotsellwellonmarketbecauseD.itishardtofixthemontheroof.A.theiradvantagesarenotwell-recognized.B.theydonotworkwellifexposedtolight.D.theyarenotadvertised.C.theyneedimprovinginappearance.45Whichofthefollowingstatementsistrue?A.Thin-filmsilicon'selectricalefficiencyimproveswhenheatedup.B.Newtechniqueshavebeendevelopedtoproducethin-filmsilicon.C.Thin-filmsiliconworksefficientlyatlowtemperature.D.AnewmaterialenlargingtheStaebler-WronsKieffecthasbeencreated.第5部分：補(bǔ)全短文第～50題，每題2分，共10分)下面的短文有5處空白，短文后有6個(gè)句子，其中5個(gè)取自短文，請根據(jù)短文內(nèi)容將其分別放回原有位置，以恢復(fù)文章原貌。GorillashaveawordforitKokoisthefirstgorillatohavebeentaughtsignlanguage(awayofcommunicatingbyusinghandsandfingersratherthanspeech).Withavocabularyofmorethan1000words,sheisthefirsttoproveweshareaworldwithotherintelligentbeingswhofeelemotions,lookforwardtocelebrationsandalsohaveasenseofhumour.The30-yearstudyofKokohasredefinedscience'sconceptofgorillaintelligence.46.Butwhathadnotbeenrecognisedbythescientificcommunitywasthatgorillashavetheabilitytolearnalanguageandhavecomplexemotions.KokolivesintheSantaCruzmountainsinNorthAmerica,inawoodedspotoverlookingavalley.47.Shehasherownhome,withcurtains,andanestofblankets,whichisherbed,inonecorner.Shehasabarrelonwhichshelikestositwhen'talking'tohumans-gorillasfeelmoresecurewhentheycanlookdownonothers-whilehertoysarespreadeverywhere.Inadditionshehasanoutsideenclosurewhereshespendsherdayswhenitisnotraining.Itisherconversationswithherteacher,DrPennyPatterson,thatareinspiring.Pennyexplains:‘Therealityofmydiscoveryisthatourabilitiesashumans,ourskills,sensibilitiesandemotionsareverysimilartothegreatapes.48..WhenshebeganteachingKokosignlanguage,placingthelittlefingersoftheone-year-oldgorillaintothecorrectpositionsfor'drink','eat','more',andrewardingherwithfood,DrPattersonhadnoideahowquicklyKokowouldlearn.“Atfirst,itseemedKokowasusingsignlanguageasatooltogetsomething,”saysPatterson.'Itbecamethekindofrewardsystemthatyoucouldexpectofacatoradog.Butearlyinhertraining,shebegantocombinesignsthatmademethinkshewascapableofmore.’49.Forexample,shedidn'tknowthewordfor'ring',soshecombinedthesignsfor‘finger’and'bracelet'toexpressit.DrPattersoncontinues:‘Kokolovesbabiesandyoungpeople.Andwhensheisaskedwhatgorillaslikebest,shealwayssays"Gorillaloveeat,good’’.'OneofPatterson'sfavouritestoriesdemonstratesKoko'ssenseofhumour.50..Fromtheageofthree,KokosharedheraccommodationwithMichaelwhowasintendedasamate.However,Michaeldiedsuddenlytwoyearsagoofaheartattack.‘KokowentintoadepressionfollowingMichael'sdeath,’saysPatterson.“Shewouldsitforhourswithherheadhunglowlookingupset.”DrPattersonaskedherifshewaslookingforwardtomovingtoHawaii,wherePattersonisraisingmoneytobuildagorillarefuge.Kokosigned“”,providedshecouldhavecurtainsinhernewhome!A.Whenavisitoraskedhertoshowhimsomethingscary,sheheldupamirrortohisface!B.?C.Accordingtosomescientists,geneticallythereisonlya2%differencebetweengorillasandhumans:wesharethesamebloodtype,havethesamenumberofhairspersquareinchandalsothesametemperament.D.Shehasherownhome,withcurtains,andanestofblankets,whichisherbed,inonecorner.E.Whatwehavelearntisthatgorillasaremorecomplexthanweeverimagined.F.NowKokoissoproficientinsignlanguagethatifshedoesn'tknowawordsheinventsone.第6部分：完型填空第～65題，每題1分，共15分)下面的短文有15處空白，請根據(jù)短文內(nèi)容為每處空白確定1個(gè)最佳選項(xiàng)。RoboticHighwayConesAUniversityofNebraskaprofessorhasdevelopedroboticconesandbarrels.Theseroboticconesandbarrelscanmoveoutoftheway,orinto51fromcomputercommandsmademilesaway.Theycanevenbeprogrammedtomoveontheirownatanyparticularpartoftheday,saidShaneFarritor,anassistantprofessorofmechanicalengineeringatNebraska.Forexample,ifworkersarrivedat6am,theconescouldmovefro