求问OG17 cr580题

李大胆

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 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.

OA是D，个人的理解是应该把这些新增的班次放在peak hour 而答案刚好相反，OG的解释也不太能看懂，希望大神可以给指点
附上OG解释
What would provide the strongest grounds for the officials’ prediction that
delays due to crowding will not increase? Delays due to crowding probably would
increase if the extra 20 percent total ridership occurred at typically busy times, even if the
total 5 percent increase in the number of daily trains were to occur at those typically busy
times. The increases in daily trains would clearly not be enough to absorb the extra
ridership. If the increase in ridership were to occur at other times of day, however,
perhaps when the subway trains were less crowded overall, the system would be able to
absorb the extra passengers without an increase in delays due to crowding.
A. While this supports the idea that the Transit Authority can economically increase
the number of train trips, it provides no information about whether the trains will be
crowded.
B. Increasing the number of bus trips on routes that connect to subways would be
likely to lead to more people to ride the subways. This makes it less likely that the
officials’ prediction—that delays due to overcrowding will not increase—will turn out
to have been accurate.
C. This suggests that subway ridership will remain high, and thus that delays caused by
overcrowding will continue.
D. Correct. This statement properly identifies a situation in which the officials’
prediction is likely to turn out to have been accurate. The ridership will be increasing
during times when more passengers will not create delays, since they will merely fill
empty seats on existing trains.
E. While this supports the idea that the Transit Authority can economically increase
the number of train trips, it provides no information about whether the trains will be
crowded.

李大胆

jiangjiangli 发表于 2017-4-26 00:13
LZ可能把题目的意思弄错了吧~它应该说的是现在在高峰期会有拥堵的情况，而未来预计人流量还会增加20%，但是 ...

确实是没看到 in ridership 非常感谢 笔芯

jiangjiangli

LZ可能把题目的意思弄错了吧~它应该说的是现在在高峰期会有拥堵的情况，而未来预计人流量还会增加20%，但是交通部门只打算增加5%的地铁，所以只有当这个20%的人流量增加在非高峰期的时候，才不会使拥挤程度上升