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A certain developing country plans to remove restrictions on grain imports. Because the country's farming is very labor intensive, imported grain will be cheaper than domestic grain. Lifting the restrictions will reduce food prices in the country's urban areas, but it will also reduce farm incomes. The overall outcome, therefore, will be an increase in rural poverty and a decrease in urban poverty. Which of the following, if true, casts most doubt on the assessment of the effects of removing the restrictions? A. In urban households, the average proportion of household residents who have paid work outside the home has increased markedly in recent years. B. Because people in urban areas cannot grow or gather much of the food they eat, food accounts for a greater proportion of average household expenditures in those areas than is the case in rural areas. C. Falling food prices have tended in the past to stimulate growth in urban industry, because at such times consumers have had more money available for industrial products. D. In rural areas, the majority of the population works on family-owned farms, but in urban areas the majority works for the government or large businesses. E. Falling farm incomes tend to cause population migrations from rural to urban areas because farm laborers are unable to find work.
Archaeologist: 100,000-year-old tools and ingredients for mixing colorful ocher paste were recently discovered in an African cave. More-recent prehistoric peoples are known to have used similar paste as paint to create art, thus proving that they were capable of symbolic thought. I conclude from the new discovery that people were capable of symbolic thought at least as far back as l00,000 years ago. Which of the following, if true, would most, weaken the archaeologist's argument? A. Many prehistoric peoples who created symbolic art never used ocher paste as paint. B. The process of making the paste was so sophisticated that it probably could not have been developed by people incapable of symbolic thought. C. Prehistoric art in a region far from the recently discovered cave dates to well before 100,000 years ago. D. Some prehistoric peoples used ocher paste as an adhesive to attach small points to weapon shafts. E. Not all prehistoric peoples with the capability for symbolic thought created any symbolic art.
参考答案：ED
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发表于 2021-12-7 18:43:36
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