Columnist: Metro City has a lower percentage of residents with humanities degrees than any other city of comparable size in our nation. Nationwide, university graduates generally earn more than people who are not university graduates, but those with humanities degrees typically earn less than do graduates with degrees in other disciplines. So the main reason Metro City has higher income per capita than any other city of comparable size in our nation must be its low percentage of residents with humanities degrees.
Which of the following, if true, would most strengthen the columnist's argument?
Metro City residents with humanities degrees have higher income per capita than do people with humanities degrees in any other city of comparable size in the nation.
The percentage of residents with university degrees is lower in Metro City than in any other city of comparable size in the nation.
Nationwide, university graduates without humanities degrees typically earn more than do individuals without university degrees.
Metro City residents with degrees outside the humanities have per capita income no higher than the per capita income of such residents of other cities of comparable size in the nation.
In Metro City, a lower proportion of university graduates have humanities degrees than in any other city of comparable size in the nation.
【类型】
果因推理
果:大都会的人均收入高于我国任何其他同等规模的城市
因:拥有人文学科学位的居民比例很低。
【加强】
①否定他因(本题D选项) ②加强因果关系
D. 拥有【人文学科以外】学位的【大都会城居民】【人均收入】 不高于 全国其他同等规模城市此类居民的人均收入。--- (去除其他因素的影响,所以可以加强)
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