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XX年大学英语六级听力训练材料 读书是好的,但必须记住,书不过是书,要自己动脑筋才行以下是为大家搜索的xx年大学听力训练材料,希望对正在关注的您有所帮助!更多精彩内容请及时关注我们!‘’ Withanestimated11-12millionforeignnationalslivingillegallyintheUnitedStatesandacrushofunderagewould-beimmigrantsarrivingdailyRepublicanlawmakerslikeSenatorJeffSessionsarepinningtheblameontheObamaadministration. “Thesadrealityoflaxenforcementplusthelackofaclearmessageiswhatisdrivingthesurge.Therealityisifyougetintothecountrytodayyouarenotbeingdeported.Thatistrue!”–saidSessions. ButAmerica’simmigrationchallengescannotbesolvedthroughlawenforcementaloneaordingtoDemocraticSenatorHarryReid. “Elevenmillionpeople.Wecannotfiscally[affordto]deport11millionpeople.Wecannotphysicallydoit.Itwillnotwork”saidReid. AprehensiveimmigrationreformbillthatwouldprovideanarduouspathtocitizenshipfortheundocumentedandboostborderenforcementpassedtheSenatelastyearbutstalledintheRepublican-controlledHouseofRepresentatives.NowPresidentObamaisaskingCongressforadditionalfundstospeedtheprocessinganddeportationofnewarrivalsfrommostly-CentralAmericannations. U.S.CustomsandBorderProtectionCommissionerGilKerlikowskenotesU.S.lawtreatsnon-Mexicanarrivalsasrefugeesnotillegalimmigrants. “Thesearenotgangmembers.Thesearenotdangerousindividuals”saidKerlikowskespeakingonABC’sThisWeekprogram. Atthesametimehigh-rankingU.S.officialshavegonetoCentralAmericawithasimplemessage:donotsendchildrentotheUnitedStates.ThatmessageistoolittletoolateaordingtoRepublicanSenatorJohnCornyn. “Unlesswesendaclearmessagethatourborderisbeingenforcedandourlawsarebeingupheldwewillcontinuetofacecrisisaftercrisisaftercrisis.MeanwhileuntoldnumbersofmigrantswillcontinuesufferinganddyinginCentralAmericaandMexicojusttryingtogethere.Orgethereshowinguponourdoorstepandoverwhelmingourcapacitytodealwiththeminaresponsibleway”saidCornyn. HopesCongresswouldenactalong-termfixtoAmerica’simmigrationwoesdiedwhenHouseSpeakerJohnBoehnerruledoutavotefortheremainderoftheyear.LastweekPresidentObamapledgedtodowhathecanonhisownthroughexecutiveauthority. Mostpeoplesufferingfrommultiplesclerosisorspinalcordinjuriescanstillmovetheireyesbecausetheyaredirectlyconnectedtothebrain.Someexistingtechnologiesalreadyallowseverelydisabledpeopletostareatarrowsonaputeranddirectthemovementofawheelchair. Butthereareproblemswiththatsystemincludingadelaybetweenthemovementoftheeyesandthewheelchair. Currenttrackingsoftwareoftenusesascreen-basedsystemwhereyouhaveascreenopenandyoulookatlocationsonthescreen.TheproblemwiththatisthatitsverysimplisticandalsodivertstheusersattentionfromtheoutsideworldandthereforetheresmoreriskofnotnoticingobstaclesorotherthingsinthewaysaidKirubinPillayaPhDstudentatImperialCollegeLondon. AteamledbyAldoFaisalatImperialCollegeLondonhasdevelopedsoftwarethatallowsuserstomaneuverthechairjustbylookinginthedirectiontheywanttotake. Oureyesarenotonlyawindowintooursoultheyrealsoawindowtoourintentions.SoifyouwanttogosomewhereforexampleifIwanttogothereorgothereIwilllookthereandIwilllookthereinaspecificmannerandwecanbuildaputersystemthatcandecodeoureyemovementsandsoweobserveeyemovementswithaneyetrackerandwethentrytomakesenseofthemandtheputerinterpretsthesemandsanddrivesthewheelchairaordingly”saidFasial. Twocamerastrainedontheeyesobservetheirmovementsandcandeterminewhetherapatientismerelylookingaroundorwantstomoveinacertaindirection. SoessentiallywetrackthepupiloftheeyeandviaacalibrationprocesswerelatethattowherethesubjectslookingintheworldaroundthemexplainedWilliamAbbottaresearcheratImperialCollegeLondon. Visualinformationdetectedbycamerasisanalyzedbyalgorithmswithin10millisecondsandtranslatedintoinstructionsformovementthatsalmostinstantaneous. Thecamera-basedsystemcostsonlyabout$85becausemostoftheworkisdonebythealgorithms.Noexpensivehardwareisneeded.TheLondonteamhopestomakethesystemmerciallyavailablewithinthreeyears.模板内容仅供参考 。