GWD进攻中又碰到的一问题～

DorothyHong · 发表于 2010-8-24 23:43:52

1. 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 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% increase in train 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% increase in the number of trains trips can be achieved without an equal increase in transit authority operational costs.

答案是D。
这题似乎很常见，我做了两遍了两遍都错，始终想不明白为什么说在低谷的时候加火车就会不让已经很挤的情况继续加重…？我觉得增加巴士在地铁站之间倒是很可行阿…
谢谢拉帮忙看看～

judydongxueni · 发表于 2010-8-25 10:06:37

就是增加的运力都在非高峰期嘛。那自然不会对高峰期的拥堵有影响喽

DorothyHong · 发表于 2010-8-25 16:34:52

我觉得比较奇怪的就是非高峰期增加了火车也没人坐…高峰期为什么不增加火车？不然不是仍然保持了很挤的状况？

judydongxueni · 发表于 2010-8-25 17:05:40

那你想那么多干嘛，人家问什么你就答什么呗

DorothyHong · 发表于 2010-8-26 23:22:26

恩我后来也相同了谢谢姐姐

GWD进攻中又碰到的一问题～

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