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提问人：网友huadazheng 发布时间：2022-01-07
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Japanese Car Keeps Watch for Drunk Drivers

？？ Aconcept car developed by Japanese company Nissan has a breathalyzer-likedetection system and other instruments that could help keep drunk or over tireddrivers off the road.？？

？？ Thecar's sensors check odors inside the car and monitor a driver's sweat fortraces of alcohol. An in-car computer system can issue an alert or even lock upthe ignition system if the driver seems over- the-limit. The air odor sensorsare fixed firmly and deeply in the driver and passenger seats,while a de-tector in the gear-shift knob measures perspiration from the driver's palm.？？

？？ Othercarmakers have developed similar detection systems. For example,Sweden's Volvohas de- veloped a breathalyzer attached to a car's seat belt that drivers mustblow into before the engine will start？？

？？ Nissan'snew concept vehicle also includes a dashboard-mounted camera that tracks adrivers alertness by monitoring their eyes. It will sound an alarm and issue aspoken warning in Japanese or English if it judges that the driver needs topull over and rest.？？

？？ The cartechnology is still in development, but general manager Kazuhiro Doi says thecombination of different detection systems should improve the overalleffectiveness of the technology. "For exam- ple,if the gear-shift sensorwas bypassed by a passenger using it instead of the driver,the facial recog-nition system would still be used," Doi says. Nissan has no specifictimetable for marketing the sys- tem, but aims to use technology to cut thenumber of fatalities involving its vehicles to half 1995 levels by 2015.？？

？？ Thecar's seat belt can also tighten if drowsiness is detected, while an externalcamera checks that the car is keeping to its lane properly. However,Doi admits that some of thetechnology,such as the alcohol odor sen- sor,should be improved "If you drink one beer,it's going toregister, so we need to study what's the appropri- ate level for the system toactivate," he says？？

？？ In th？？e UK,someresearch groups are using similar advanced techniques to understand driverbe-havior and the effectiveness of different road designs.？？

？？Which of the following statements is NOTtrue of the Japanese concept care？？？？

A.It has a sensor system that could issue a warning if the driver is drunk

B.It has sensors that detect traces of alcohol inside the car

C.It has sensors locked up in the ignition system

D.It has a breathalyzer-like detection system

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