请教OG10-155

155. The proportion of women among students enrolled in higher education programs has

increased over the past decades. This is partly shown by the fact that in 1959, only 11 percent

of the women between twenty and twenty-one were enrolled in college, while in 1981, 30

percent of the women between twenty and twenty-one were enrolled in college.

To evaluate the argument above, it would be most useful to compare 1959 and 1981 with

regard to which of the following characteristics?               

(A) The percentage of women between twenty and twenty-one who were not enrolled in

college

(B) The percentage of women between twenty and twenty-five who graduated from

college

(C) The percentage of women who, after attending college, entered highly paid

professions

(D) The percentage of men between twenty and twenty-one who were enrolled in college

(E) The percentage of men who graduated from high school

155.

The argument presents a substantial increase in the proportion of women between twenty

and twenty-one who were enrolled in college as evidence that there was an increase in the

proportion of higher education students who were women. This evidence would lack force if a

similar increase in college enrollment had occurred among men. Choice D is therefore the best

answer.

Since percentages of men graduating from high school do not indicate the percentages

enrolling in college that year, choice E is incorrect. Choices A, B, and C are incorrect because

the information they refer to, being about women only, does not facilitate a comparison of

women’s enrollment to men’s enrollment in higher education programs.

做的时候毫不犹豫选了A,因为其他的在第一时间就被排除掉了

看了答案,实在不明白为什么女性学生入学比例的提高要和男性比才行呢?

请各位不吝赐教!!

文中要讨论的argument是The proportion of women among students enrolled in higher education programs 即女生占的比例。但文中evidence部分只告诉了两年进入大学的女生占女生总数的比例，注意不是占总人数（男生+女生）的比例，所以要得知男生进入的比例。如果作比较的两年男生进入的人数不变，则女生的proportion增加，如果男生人数也增加，则有可能Proportion减少

确实是这样的!

看来我是忽略了一个重要的keyword...

感激不尽.....

明白了