gwd 逻辑一道~大家木有讨论过A选项

kelebonnie

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.
此题答案是B,我已明白为什么选b  ，但是不知道A为什么错，大家好像木有讨论过a

kelebonnie

我一直在等哈，大家知道的就麻烦回一下，谢啦~

fdunan

A项表达细微差别：“the most recent period of economic recession”是无关的。不能排除the most recent period of economic recession和以往大多数recession相比要轻微很多，所以即使目前的student-teacher ratio比起the most recent period of economic recession的ratio高，也不能表示当前的ratio确实很高。

并且还有一个前提说道that current student-teacher ratios not be exceeded。即使当前的比例高也不一定高到可以增加availability of teaching jobs的程度。

kelebonnie

A项表达细微差别：“the most recent period of economic recession”是无关的。不能排除the most recent period of economic recession和以往大多数recession相比要轻微很多，所以即使目前的student-teacher ratio比起the most recent period of economic recession的ratio高，也不能表示当前的ratio确实很高。

并且还有一个前提说道that current student-teacher ratios not be exceeded。即使当前的比例高也不一定高到可以增加availability of teaching jobs的程度。

-- by 会员 fdunan (2011/10/26 16:43:17)

谢谢啦~解释得很清楚