比较纠结于A和B……哪位大牛帮帮忙吧~~~~作者: doudouty 时间: 2010-12-24 01:53
一定要弄明白。。要不今晚睡不着了。。。。。作者: sdcar2010 时间: 2010-12-24 02:25
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 driver 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 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 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.
Necessary assumption. Use negation method. B is the answer. The keyword is regularly.作者: stevenvboy 时间: 2010-12-24 17:58
站里有个帖子解释得不错：http://forum.chasedream.com/GMAT_CR/thread-276498-1-9.html作者: doudouty 时间: 2010-12-28 10:53
thank you!