Recent estimates predict that between 1982 and 1995 the greatest increase in the number of people employed will be in the category of low-paying service occupations. This category, however, will not increase its share of total employment, whereas the category of high-paying service occupations will increase its share.

If the estimates above are accurate, which of the following conclusions can be drawn?

(A) In 1982 more people were working in low-paying service occupations than were working in high-paying service occupations.

(B) In 1995 more people will be working in high-paying service occupations than will be working in low-paying service occupations.

(C) Nonservice occupations will account for the same share of total employment in 1995 as in 1982.

(D) Many of the people who were working in low-paying service occupations in 1982 will be working in high-paying service occupations by 1995.

(E) The rate of growth for low-paying service occupations will be greater than the overall rate of employment growth between 1982 and 1995.

你的疑惑是什么啊，请下次贴出答案，和你的具体疑惑，好方便我们讨

论。

这道题应该选A。

这象是一道数学题，低收入职位的人数增多得最多，但在被雇佣人中所占

比例没有增加。然而，高收入群体所占的比例增加了。从这可以看出低收

入人群的基数很大所以在人数增长最多的情况下比例会不变。

举个例子：100个被雇佣的人，70个低收入，30个高收入。如果收入增加了

30个，高收入增加了20个，那么高收入所占比例增加了，但增加的绝对人

数没有低收入的高。

如果想不通可以代数字算。请指教！