[求助]大全-5-19题

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.

答案为什麽是A呢？想不通，D 怎麽不对呢？

簡單整理一下题目 :

3年内

投入 low-paying service 的人数 (注意 是数量) ↑ 占整体的比例  the same

  high-paying service的人数 (题目没交代)   ？ 占整体的比例  ↑

雖然題目沒有說明,但現實生活中這種數據上的變化,應該不可能是同一批人上的異動,新增加了勞動人口影響了整體數據分析的可能性較大

(D)選項我試著用數據算來算去….都算不出一個合理的數字來

就像你所说的那样变化，我想的是既然low pay数量增加，但比率没变，而high pay 比例增加，可能是因为原先一部分 low pay人转成了high pay, 这样，即使新的low pay 仍然在增加，而原先那部分已不再是high pay了。不知说明白了吗？

关键是谁能解释一下为甚麽是A呢？应该怎样理解A的 逻辑呢？

谁能帮我解释一下呀？

Mindfree说滴真是好耶 ! 不知 harvardstudent 是否弄明白噜?

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

刚刚又想了一下 ,这么说吧 (D) 有可能是(A)的第二层推论    <个人观点请nn指正>

你要不要朝这个方向再思索一下

可别掉进胡同里噜

ETS的CR最高指导原则之一是à别想太远啦……

Mindfree 说的是，我也明白绝对值变化不一定导致相对值变化，但是我还是不明白A的思路.(我可能真的钻进胡同出不来了) 大家帮我具体分析一下应该怎样推理出这道题的结论吧.  

另外,B也是在说绝对值变化怎麽不对呢? (看来我最近变得愚钝了)

此题，我也没有想通，绝对与相对数量的问题，举例说明：

谁能举个例子~~~