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The difference in average annual income in favor of employees who have college
degrees, compared with those who do not have such degrees, doubled between 1980
and 1990. Some analysts have hypothesized that increased competition between
employers for employees with college degrees drove up income for such employees.
Which of the following, if true, most seriously undermines the explanation
described above?
A. During the 1980s a growing percentage of college graduates, unable to find
jobs requiring a college degree, took unskilled jobs.
B. The average age of all employees increased slightly during the 1980s.
C. The unemployment rate changed very little throughout most of the 1980s.
D. From 1980 to 1990 the difference in average income between employees with
advanced degrees and those with bachelor’s degrees also increased.
E. During the 1980s there were some employees with no college degree who
earned incomes comparable to the top incomes earned by employees with a
college degree.
正确答案是A.
og解释:A. Correct. This suggests that the supply of college graduates grew relative to
employers’ demand for them, and hence that employers’ competition for college-
educated employees did not actually increase.
我根据helr逻辑的分析:
果:1980-1990,有学位与没学位的人工资差距翻倍
因:雇主之间对有学位的人的竞争导致有学位的人工资上升。
问削弱。
我的疑惑:这道题我根据helr的思维第一遍感觉五个都不正确,后面又看了一遍,觉得非要选择一个应该就是A。但是A选项感觉是直接否定了逻辑链中的“因”。
但是helr逻辑强调过“果因逻辑链”中问削弱的话不能直接否定因。
比如:果:我闻到你身上有酒味道
因:你一定喝酒了。
削弱:我没有喝酒。
这种削弱是苍白无力的。
跪求大家扒出我的逻辑漏洞!!!!
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