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1. According to a recent research study, more than 90% percent of graduates of private high schools in a certain county continue their education in college. By contrast, only 65% of graduates of public high schools subsequently pursue college education. Therefore, if parents in the county wish to increase the likelihood that their children will attend college, they should send them to private rather than public schools. Which of the following statements would most seriously weaken the argument above? A Graduates of private schools typically score higher on standardized tests and other tests of academic achievement. B While private schools are typically very expensive, attendance of public school is free for the residents of the county. C In comparison with graduates of private schools, a substantially greater proportion of public school graduates receive need-based financial aid for their college education. D In comparison with private schools, public schools provide more opportunities for student involvement in sports and other athletic activities, which almost always increase the likelihood of students’ acceptance to colleges. E Since most public schools are located in rural areas of the county populated primarily by farmers, nearly 30% of students from public high schools choose to pursue farming occupations rather than apply to colleges.
2.Two years ago, the cost of the raw material used in a particular product doubled after an earthquake disrupted production in the region where the material is mined. Since that time, the company that makes the product has seen its profit margins decline steadily. Aiming to improve profit margins, the company’s head of engineering has decided that he must find a new source for the raw material. Which of the following, if true, would cast the most doubt on the validity of the head of engineering’s decision? A New competitors have entered the market every six months for the past two years, resulting in price wars that have progressively driven down revenues across the market. B Although the earthquake occurred two years ago, the region’s mines have still not recovered to pre-earthquake production capacity. C There are several other regions in the world where the raw material is mined, but those regions do not produce as much of the raw material as the current source region. D The company could use a completely different raw material to make its product. E Recent advances in mining technology will make mining the raw material much more efficient and cost-effective in the future.
参考答案： EA
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发表于 2021-8-3 11:12:55
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