2. 外语
  3. A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar d

A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar d

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问题 A recent report determined that although only three percent of drivers on Maryland highways equipped their vehicles with radar detectors, thirty-three percent of all vehicles ticketed for exceeding the speed limit were equipped with them. Clearly, drivers who equip their vehicles with radar detectors are more likely to exceed the speed limit regularly than are drivers who do not.The conclusion drawn above depends on which of the following assumptions?
选项 A、Drivers who equip their vehicles with radar detectors are less likely to be ticketed for exceeding the speed limit than are drivers who do not.
B、Drivers who are ticketed for exceeding the speed limit are more likely to exceed the speed limit regularly than are drivers who are not ticketed.
C、The number of vehicles that were ticketed for exceeding the speed limit was greater than the number of vehicles that were equipped with radar detectors.
D、Many of the vehicles that were ticketed for exceeding the speed limit were ticketed more than once in the time period covered by the report.
E、Drivers on Maryland highways exceeded the speed limit more often than did drivers on other state highways not covered in the report.
答案B
解析 本题段落前半部分可以提炼为“有雷达探测器的司机比没有雷达探测器的司机更易得罚单”，后半部分可提炼为“有雷达探测器的司机比没有雷达探测器的司机更经常超速”。(B)把这两部分的跳跃“更易得罚单”与“更经常超速”连了起来，因此可以作为一个假设；(A)正好与段落信息相违背。
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