大全-5-19. 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.（A）
(E) The rate of growth for low-paying service occupations will be greater than the overall rate of employment growth between 1982 and 1995.
求助一下这题的推导是怎么出来的？
share是说某个人群的人数/总就业人数吗？
大全-5-19. 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.（A）
(E) The rate of growth for low-paying service occupations will be greater than the overall rate of employment growth between 1982 and 1995.
求助一下这题的推导是怎么出来的？
share是说某个人群的人数/总就业人数吗？
lz对share的理解是对的
说更多的人1995会在low-paying里面，但是比例不变，而一小部分人1995会在high-paying，而占总体的比例却会提高，说明原来在low-paying的人很多，比如说有总共有1000个人，900个low-paying，多12个人对总体所占的比例几乎没影响；但是如果high-paying总共只有100个人，多8个人对其总体比例就有比较大的影响。
（具体不算了，lz体会下）
谢谢lz，但是总共人数1995年和1982年也是不同的啊？
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