为什么OG说双that冗长的读音呢，一道题求解

来源：蜘蛛抓取(WebSpider) 时间：2016-09-20 05:50 标签： 拖沓冗长
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本贴相关题目
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 Mooreville 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 suffi cient 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?
ABy changing maintenance schedules, the Transit Authority can achieve the 5 percent increase in train trips without purchasing any new subway cars.&&BThe Transit Authority also plans a 5 percent increase in the number of bus trips on routes that connect to subways.&&CFor most commuters who use the subway system, there is no practical alternative public transportation available.&&DMost of the projected increase in ridership is expected to occur in off-peak hours when trains are now sparsely used.&&EThe 5 percent increase in the number of train trips can be achieved without an equal increase in Transit Authority operational costs.&&
正确答案: D
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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.完全不理解OG的解释。。。。。。。。谢谢NN先。。。
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选D?新增的乘车人数在于非高峰时期，就是说现有运力就能满足，何况又增加了运力?
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首先题目有两个重要的信息，一是Subway ridership is projected to increase by 20 percent over the next 10 years. 二是为了应对这种增加The Metroville Transit Authority plans to increase the number of daily train trips by only 5 percent over the same period。 乍一看就会觉得，ridership增加了20%可是number of daily trains只增加了5%，这怎么够呢？但是Officials说足够了。问加强那么加强的方向自然就是解释为什么增加5%就足够了。D选项大部分的ridership的增加是off-peak hours when trains are now sparsely used，注意sparsely稀少地，贫乏地意思，这里就是说在这个非高峰时期train是很少被使用的，因此这个ridership虽然是增加了20%之多，但是由于大部分的增加是处于这个本来不怎么使用train的时间，所以只增加5%的number of daily trains就足够应对了，因此支持了结论。
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选D, off-peak time 占20% increase中得多数，所以不需要增加那么多数量的daily train
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首先题目有两个重要的信息，一是Subway ridership is projected to increase by 20 percent over the next 10 years. 二是为了应对这种增加The Metroville Transit Authority plans to increase the number of daily train trips by only 5 percent over the same period。 乍一看就会觉得，ridership增加了20%可是number of daily trains只增加了5%，这怎么够呢？但是Officials说足够了。问加强那么加强的方向自然就是解释为什么增加5%就足够了。D选项大部分的ridership的增加是off-peak hours when trains are now sparsely used，注意sparsely稀少地，贫乏地意思，这里就是说在这个非高峰时期train是很少被使用的，因此这个ridership虽然是增加了20%之多，但是由于大部分的增加是处于这个本来不怎么使用train的时间，所以只增加5%的number of daily trains就足够应对了，因此支持了结论。-- by 会员 camelo777 ( 23:11:45)
好详细的解释~~谢谢~貌似懂了~~
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读题目很重要，个人认为这道题目略微不同于 support，而是补充条件从而以便更加顺利的推出结论按照常理，增加20%的客流量却只增加了5%的班次是无法保证 拥挤导致的delay不会增加的。但 倘若增加条件为 20% 乘客数量的增加发生在非高峰期，那么 增加的乘客数量不过填补了 空位，则不会造成拥挤，更不会增加 拥挤而带来的delay。一家之见。。。
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这题当时我也想了很久，后来总结起来很简单，其实就是把更多的车次安排在低峰期从而缓解高峰期的拥挤。我在美国学习，这里的老师上逻辑课说，要把复杂的问题想简单，如果把简单的问题想得复杂了就是愚蠢的。虽然有时老外的逻辑难catch，但是也不要想得太复杂了。
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