本贴相关题目 OG-2015V-CR-16 | GMATPrep-2007E2-CR-57 (SPXJ)

00:00:00

Since the deregulation of airlines, delays at the nation's increasingly busy airports have increased by 25 percent.To combat this problem, more of the takeoff and landing slots at the busiest airports must be allocated to commercial airlines.

Which of the following, if true, casts the most doubt on the effectiveness of the solution proposed above?

AThe major causes of delays at the nation's busiest airports are bad weather and overtaxed air traffic control equipment.
BSince airline deregulation began, the number of airplanes in operation has increased by 25 percent.
COver 60 percent of the takeoff and landing slots at the nation's busiest airports are reserved for commercial airlines.
DAfter a small Midwestern airport doubled its allocation of takeoff and landing slots, the number of delays that were reported decreased by 50 percent.
ESince deregulation the average length of delay at the nation's busiest airports has doubled.

正确答案: A

答案是A，我怎么感觉B才是正确

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anjjule

楼主

发表于 2011-10-19 11:07:35 | 显示全部楼层

刚刚看到这题,为后来人做个预先解答:

B说自从deregulation开始，（运行的）飞机的数量增加了25%
这个只能作为题干中“延误增加了25%”的一个原因，没有别的用处，不能削弱解决方案----解决方案是题干的最后一句话

A 正确答案，从飞机延误的原因入手，即因为坏天气和交通管制设备的负担过重，如果实行了题干最后一句话的解决方案，坏天气和设备负担过重还是会出现，并导致飞机延误，所以这个解决方案“更多的~~~必须分配到商业航线上去”实行了也是没有用的

一点拙见，谢谢