gwd 24-9一道逻辑题..

gmatziyu

GWD-12-Q11:
In general, jobs are harder to get in times of economic recession because many businesses cut back operations. However, any future recessions in Vargonia will probably not reduce the availability of teaching jobs at government-funded schools. This is because Vargonia has just introduced a legal requirement that education in government-funded schools be available, free of charge, to all Vargonian children regardless of the state of the economy, and that current student-teacher ratios not be exceeded.
Which of the following, if true, most strengthens the argument?
A. The current student-teacher ratio at Vargonia’s government-funded schools is higher than it was during the most recent period of economic recession.
B. During recent periods when the Vargonian economy has been strong, almost 25 percent of Vargonian children have attended privately funded schools, many of which charge substantial fees.
C. Nearly 20 percent more teachers are currently employed in Vargonia’s government-funded schools than had been employed in those schools in the period before the last economic recession.
D. Teachers in Vargonia’s government-funded schools are well paid relative to teachers in most privately funded schools in Vargonia, many of which rely heavily on part-time teachers.
E. During the last economic recession in Vargonia, the government permanently closed a number of the schools that it had funded.
Answer: b
这个题目好像以前问过但是没有定案。。。不明白为什么要选D呢。。

sunluning0

answer:B

gmatziyu

..还是不明白楼上的呢。。。

gmatziyu

继续困惑中。。

hughlv

gmatziyu，你明明给的答案是B，为啥要问别人说答案为啥是D呢？这不是误导人嘛，哈哈。

在我看来B比D要好很多。在经济好的时候，大家有钱，所以选择私立贵族教育，要交很多钱。那么在经济萧条时这部分人肯定有部分会转向便宜的公立学校。所以会导致公立学校的学生变多，又因为师生比要保持，所以对老师的需求会增加。

不知道这个解释够清楚了没？

ellie78

我觉得应该选B
学生和老师ratio不exceed，也就是说当学生（分子）变多，老师（分母）只有也变多，才能使这个比例不exceed。B能扩大分子。

gracezz

我完全理解错了，我选了E，当时想，上次recession的时候，关了一些公立学校，这样再有recession的话，因为学校少，学生多，这样必定会增加老师，因为比例不变。


请大家帮我看看我的推理哪里有问题？我自己的分析是：我的逻辑错在“因为学校少，学生多”这是个历史事件，由于关学校带来的师生不配比肯定已经解决了，或者说对后面应该构不成影响了。而且有可能这次recession还会关呢，也说不准。

请指教~