圣才电子书www.100xuexi.com十万种考研考证电子书、题库视频学习平台Questions10~12refertothefollowingarticle.AccordingtotheAutomobileAssociation,theaveragecommuterspends10$7,500peryear,or$15perday,tooperatetheircar.Thesefiguresarebasedonamid-sizecardriven18,000kmannually(a30kmdailyroundtrip)andincludeoperation(fuel,maintenance,etc.)andownership(financing,insurance,depreciation).Sportutilityvehicleandmini-vanownerscanexpecttospendover$9,000annually.Ridesharingcan11reducethesecostsandinsomecasescaneliminatetheneedforthatcostlysecondfamilyvehicle.Thereisanother,moretragic,costrelatedtoautomobileuse:degradationofourenvironment.Everyday,millionsofvehiclespumppollutantsintoouratmosphere.Someofthesefalltoearth,foulingstreamsandcontaminatingcrops.Othersriseintothestratosphere,damagingtheozonelayerandcausingglobalclimatewarming-the\effect.\Stillmoreofthesepollutantsclingclosetoearth,inhaledwitheverybreathwetake.Airpollutionisaprovencauseofseverallungailments,fromasthmatoemphysema.Ridesharingreducesthe12ofautomobilesonourroadwaysandourenvironmentverysimply-bytravelingingroupsratherthanalone,ridesharingdecreasesthenumberofvehiclesonourroads.Itcanalsorelievestressbysharingtheresponsibilityofdriving.10.(A)approximateapproximately6/16(B)approximated(C)approximation(D)
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