GWD6-Q33 求助

XIAOTINGTING

GWD-6-Q33**:

Crowding on Mooreville’s subway frequently leads to delays, because it is difficult for passengers to exit from the trains.  Subway ridership is projected to increase by 20 percent over the next 10 years.  The Metroville Transit Authority plans to increase the number of daily train trips by only 5 percent over the same period.  Officials predict that this increase is sufficient to ensure that the incidence of delays due to crowding does not increase.

 

Which of the following, if true, provides the strongest grounds for the officials’ prediction?

 

A.       By changing maintenance schedules, the Transit Authority can achieve the 5 percent increase in train trips without purchasing any new subway cars.

B.        The Transit Authority also plans a 5 percent increase in the number of bus trips on routes that connect to subways.

C.        For most commuters who use the subway system, there is no practical alternative public transportation available.

D.       Most of the projected increase in ridership is expected to occur in off-peak hours when trains are now sparsely used.

E.        The 5 percent increase in the number of train trips can be achieved without an equal increase in Transit Authority operational costs.

我觉得D 是WEAKEN 怎么会是SUPPORT 呢?

sm0421

此题体现了GMAC的变态严格逻辑思路。

题：车很挤了已经，预计！还要有20%的客流增多；但是运营公司！只有5%多的车。所以政府！说不够，减缓不了拥挤。

问：政府咋这么有理呢？

D。预计的客流是在非高峰。

对啊，如果你预计的非高峰都有20%人流增多是对的，那么也许车不用多20%，也许5%就够了；但万一是在高峰的20%人流增多呢，那不就更得多车了么，说不定20%车多都不够。

那么政府确实是有道理的。

变态的题目。

[此贴子已经被作者于2006-12-18 23:23:37编辑过]

yuepeiyi

good

恺撒的荣耀

2楼的把题目都理解反了。。。

大家看下面的解释，来自NN：

D -- Crowding increases the delay. If most of the passenger increase is in the off peak hours when the trains are less crowded , then 5% increase of trains even in peak hours should be sufficient to take care of the 20% increase.

 

Here all we know is that crowding is to blame for delay. So 20% ridership, is occurs only during off-peak time, will not cause crowding proportionately (20% to 20%). Therefore 5% increase in trips might well mitigate the problem.

 

以下是引用helenefz在2004-12-26 10:59:00的发言：
                

这题我还没明白。

题中说迟到是因为挤(crowd)造成，D说增加的ridership是在off-peak（非高峰期），那么peak的时间，ridership就没有变化，那么不还是会挤吗？

请指教。

D 是说“projected to increase by 20 percent over the next 10 years. ” 未来十年20％的人数增加大部分会发生在非高峰期，也就是现在不拥挤的时候。 这样现在高峰的人数增加不会有20％那么多。所以增加5％的班次就足够减轻拥挤了。正如你说的“那么peak的时间，ridership就没有变化”， 同时有多5％的火车，那问题就不会恶化了。

 

其实只要针对题目中的 Officials predict that this increase is sufficient to ensure that the incidence of delays due to crowding
            does not increase.由于拥挤造成的迟到没有增加。 D中说增加的班次是发生在非高峰期也就是说高峰期的拥挤并没有增加。
        否则应该要增加高峰期的班次。

 

A：can achieve the 5 percent increase in train trips，怎样实现这5%的增长is not the concern here at all.

B：also plans a 5 percent increase in the number of bus trips，增不增加公车is not the concern here at all.

C：For most commuters who use the subway system, there is no practical alternative public transportation available.，有没有可选工公交通工具is not the concern here at all.

D :

E : operational costs is not the concern here at all.

yywhu

3楼NN正解

sunshengkun666

您好，您 能跟我说一下您 跟2楼理解的区别在哪么???我原来也是按二楼地样理解的啊??

monica8931

真牛啊 豁然开朗~

大笑丸子

二楼错在原文说Officials predict that this increase is sufficient to ensure ，也就是说政府官员说足够了，可以减缓拥挤。政府官员是同意这个地铁公司的～