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编辑点评： 由于新GRE逻辑阅读部分的内容考生还是有点不习惯，或是没有对新GRE逻辑阅读部分准备充分，建议第一遍时一定卡时间练习。所有10个练习共计132道逻辑单题，数量已经足够;反复训练这些题目，应对新GRE逻辑阅读单题应该没有困难。 由于新gre逻辑阅读部分的内容考生还是有点不习惯，或是没有对新gre逻辑阅读部分准备充分，建议第一遍时一定卡时间练习。所有10个练习共计132道逻辑单题，数量已经足够;反复训练这些题目，应对新GRE逻辑阅读单题应该没有困难。 1.A new and more aggressive form of the fungus that caused the Irish potato famine of the nineteenthcentury has recently arisen. However, since this new form of the fungus can be killed by increased application of currently used fungicides, it is unlikely that the fungus will cause widespread food shortages in countries that currently rely on potatoes for sustenance.Which of the following, if true, most calls into question the conclusion in the argument above? Though potatoes are an important staple crop in many parts of the world, people in most countries rely primarily on wheat or rice for sustenance. Potato farmers in many countries to which the new form of the fungus has spread cannot afford to increase their spending on fungicides. The new form of the fungus first began to spread when contaminated potato seeds were inadvertently exported from a major potato-exporting country. | 
