The use of radar detectors in commercial vehicles was banned because commercial truck and bus drivers were using these devices to drive faster than the posted speed limit without fear of arrest. Since drivers of noncommercial vehicles also use radar detectors and since speeding decreases safety for any vehicle, use of radar detectors should also be banned in noncommercial vehicles to increase safety.
Which of the following, if true, most strongly supports the argument above?
The average noncommercial-vehicle driver is involved in less long-distance driving than is the average commercial-vehicle driver.
In many places airplanes or helicopters are used rather than radar to locate vehicles traveling faster than the posted speed limit.
The ban on radar detectors in commercial vehicles has been effective in deterring them from speeding.
Traffic accidents involving a truck or bus generally pose a greater threat of injury or death than do other accidents.
Radar detectors are sometimes set off by devices other than the law enforcement devices that the radar detectors were built to detect.
有雷达警报器的大车司机肆无忌惮超速,所以被禁用警报器。私车司机也用警报器,超速危险,所以小车司机也应被禁用警报器以减少危险。
看选项前,我心中认定正确答案应该是搭桥:私车司机也肆无忌惮超速。
结果发现五个选项都不沾边,排除法选的c
a 就算有关也是削弱
b 其他非雷达测速法对大小车作用一样,并且削弱措施有效性
d 削弱
e 雷达警报器不好用,不仅对雷达叫,对其他不测速的玩意也叫 (set off这里是启动的意思),所以反而可能让司机多减速了,削弱
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