ChaseDream
搜索
返回列表 发新帖
查看: 1861|回复: 3
打印 上一主题 下一主题

prep7-1993-02-section4-Q1 逻辑解释

[复制链接]
楼主
发表于 2009-6-14 06:37:00 | 只看该作者

prep7-1993-02-section4-Q1 逻辑解释

Q1, in 1974 the speed limit on highways in the united states was reduced to 55 miles per hour in order to save fuel. in the first 12 months after the change, the rate of highway fatalities dropped 15 percent, the sharpest one-year drop i history. over the next 10 years, the fatality rate declined by another 25 percent. it follows that the 1974 reduction in the speed limit saved many lives.

which one of the following, if true, most strengthens the argument?

D) the fatality rate in highway accidents involving motorists driving faster than 55 miles per hour is much higher than in  highway accidents that do not involve motorists driving at such speeds.

完全不明白为什么是这个选项, 我觉得很无关。希望能够帮忙解答一下。谢谢啦。

沙发
发表于 2009-6-22 01:00:00 | 只看该作者
但从选项来看。d)说 fatality rate is higher when speed>55, which means making the speed<=55 reduces the fatality rate,所以strengthen the argument
如果你post其它选项的话,也有可能可以用排除法做掉
板凳
发表于 2009-6-22 18:46:00 | 只看该作者
这是一个无因即无果的加强。结论是因为限速所以提高安全,那就找因为不限速所以不提高安全的例子。
地板
发表于 2009-6-24 21:13:00 | 只看该作者
楼上说得蛮对滴~~
您需要登录后才可以回帖 登录 | 立即注册

Mark一下! 看一下! 顶楼主! 感谢分享! 快速回复:

所属分类: 法学院申请

近期活动

正在浏览此版块的会员 ()

手机版|ChaseDream|GMT+8, 2024-12-24 01:01
京公网安备11010202008513号 京ICP证101109号 京ICP备12012021号

ChaseDream 论坛

© 2003-2023 ChaseDream.com. All Rights Reserved.

返回顶部