Passage1 AconceptcardevelopedbyJapanesecompanyNissanhasabreathalyzer-likedetectionsystemandotherinstrumentsthatcouldhelpkeepdrunkorovertireddriversofftheroad. Thecar'ssensorscheckodorsinsidethecarandmonitoradriver'ssweatfortracesofalcohol.Anin-carcomputersystemcanissueanalertorevenlockuptheignitionsystemifthedriverseemsover-the-limit.Theairodorsensorsarefixed'firmlyanddeeplyinthedriverandpassengerseats,whileadetectorinthegear-shiftknobmeasuresperspirationfromthedriver'spalm. Othercarmakershavedevelopedsimilardetectionsystems.Forexample,Sweden'sVolvohasdevelopedabreathalyzerattachedtoacar'sseatbeltthatdriversmustblowintobeforetheenginewillstart. Nissan'snewconceptvehiclealsoincludesadashboard-mountedcamerathattracksadriver'salertnessbymonitoringtheireyes.ItwillsoundanalarmandissueaspokenwarninginJapaneseorEnglishifitjudgesthatthedriverneedstopulloverandrest. Thecartechnologyisstillindevelopment,butgeneralmanagerKazuhiroDoisaysthecombinationofdifferentdetectionsystemsshouldimprovetheoveralleffectivenessofthetechnology."Forexample,ifthegear-shiftsensorwasbypassedbyapassengerusingitinsteadofthedriver,thefacialrecognitionsystemwouldstillbeused,"Doisays.Nissanhasnospecifictimetableformarketingthesystem,butaimstousetechnologytocutthenumberoffatalitiesinvolvingitsvehiclestohalf1995levelsby2015. Thecar'sseatbeltcanalsotightenifdrowsinessisdetected,whileanexternalcamerachecksthatthecariskeepingtoitslaneproperly.However,Doiadmitsthatsomeofthetechnology,suchasthealcoholodorsensor,shouldbeimproved."Ifyoudrinkonebeer,it'sgoingtoregister,soweneedtostudywhat'stheappropriatelevelforthesystemtoactivate,"hesays. IntheUK,someresearchgroupsareusingsimilaradvancedtechniquestounderstanddriverbehaviorandtheeffectivenessofdifferentroaddesigns. WhichofthefollowingisNOTmentionedinParagraph6?
A.An external camera checks that the car is going properly.
B.The car will automatically keep to its lane.
C.The seat belt will tighten when the driver is found drowsy.
D.The technology of the alcohol odor sensor should be improved.
正确答案是B