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标题: 求大牛解答啊，急急急急急~~OG12 78 [打印本页]

作者: zhangmengyun 时间: 2011-5-8 23:13
标题: 求大牛解答啊，急急急急急~~OG12 78
看了N遍还是不懂啊，脑子短路了~~求大牛解答
A recent report determined that although only 3 percent of drivers on Maryland highways equipped
their vehicles with radar detectors, 33 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?

A.Drivers who equip their vehicles with radar
detectors are less likely to be ticketed for
exceeding the speed limit than are driverswho
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.

作者: kikisunflower 时间: 2011-5-8 23:16
把题贴一下

作者: zhangmengyun 时间: 2011-5-8 23:35
不好意思啊，第一次发题~~

作者: victoriayu326 时间: 2011-5-8 23:54
I think the core of the solution can be summarized in one sentence: exceeding speed limit once is not equal to exceeding speed limit REGULARLY. the answer fills the gap.

作者: hanshipeng 时间: 2011-5-9 06:13
标题: Try
B. I think.3% 的driver装GPS。33%被罚。结论：装GPS的比不装的，容易超速。

这道题主要是明白“超速”和“被罚”的关系。超速不一定被罚，但是被罚的一定超速了。

条件和结论有断层。连接它们的就是，被罚的比不被罚的容易超速。即B.

作者: zhangmengyun 时间: 2011-5-10 11:08

I think the core of the solution can be summarized in one sentence: exceeding speed limit once is not equal to exceeding speed limit REGULARLY. the answer fills the gap.

-- by 会员 victoriayu326 (2011/5/8 23:54:06)

灰常感谢哈

作者: zhangmengyun 时间: 2011-5-10 11:09

B. I think.3% 的driver装GPS。33%被罚。结论：装GPS的比不装的，容易超速。

这道题主要是明白“超速”和“被罚”的关系。超速不一定被罚，但是被罚的一定超速了。

条件和结论有断层。连接它们的就是，被罚的比不被罚的容易超速。即B.

-- by 会员 hanshipeng (2011/5/9 6:13:50)

这样理解起来清楚很多，谢谢~~

作者: bmwsherry 时间: 2011-7-7 19:58
原文逻辑：索然只有3%的人装雷达，但是被罚的人里面33%装雷达，所以装雷达的比不装的更容易超速。因为超速不一定被罚，所以逻辑前后需要一个链接：被罚的比不被罚的更容易超速。

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