标题: 关于大学tuition的神题！神马逻辑？？大侠门给指点一下 [打印本页] 作者: dinssads 时间: 2014-6-7 14:39 标题: 关于大学tuition的神题！神马逻辑？？大侠门给指点一下 both enrollment and total tuition revenue at Brwonsville University have increased during each of the last four years. During the same period of time, enrooment at Canterbury University has steadily decerased, while total tuition revenue has remained constant.
(C) The pre-student tuition at Canterbury University has rised over the last four years.
(E) Canterbury University will likely continue to raise tuition to make up for lost revenue from declining enrollment
这两个选项有本质区别吗？都是在说tuition，为什么答案给C？作者: brfmzbjz 时间: 2014-6-15 07:47
兄台，你题目来源编号不写，连问题都不写。。很难跟你讨论啊。。
假设这个题目问的是explain the situation in C university
结论是 enrollment 下降，tuition 持平
C 选项，因为是pre-student tuition在增加，不会对大学的enrollment和tuition有任何影响，可以解释大学enrollment下降，但整体tuition持平的现象
相反，E选项说提高了tuition来弥补enrollment的下降。你怎么知道提高了学费后，enrollment不会下降得更厉害，从而导致总体tuition更低呢？这是简单的供求原理。所以要让E选项成为合格的解释，必须再增加一条前提，也就是tuition的提供不会进一步降低enrollment. 但这个前提在E选项是缺失的，因此E选项不能说明结论。