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题目内容
The faster a car is traveling, the less time the driver has to avoid a potential accident, and if a car does crash, higher speeds increase the risk of a fatality. Between 1995 and 2000, average highway speeds increased significantly in the United States, yet, over that time, there was a drop in the number of car-crash fatalities per highway mile driven by cars.

Which of the following, if true about the United States between 1995 and 2000, most helps to explain why the fatality rate decreased in spite of the increase in average highway speeds?
  • AThe average number of passengers per car on highways increased. 分析该选项
  • BThere were increases in both the proportion of people who wore seat belts and the proportion of cars that were equipped with airbags as safety devices. 分析该选项
  • CThe increase in average highway speeds occurred as legal speed limits were raised on one highway after another. 分析该选项
  • DThe average mileage driven on highways per car increased. 分析该选项
  • EIn most locations on the highways, the density of vehicles on the highway did not decrease, although individual vehicles, on average, made their trips more quickly. 分析该选项
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正确答案: B
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题目基本信息

  • 所属科目:逻辑CR
  • 题目来源1:PREP2012-12
  • 正确率:81%
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