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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. Armtech, a temporary-employment agency, previously gave its employees 2.5 paid vacation days after each 700 hours worked. Armtechs new policy is to give its employees 5.0 paid vacation days after each 1,200 hours worked. Therefore, this new policy is more generous to Armtech employees in giving them more vacation days per hour worked than the old policy did. Which of the following is an assumption on which the argument depends? Most current Armtech employees approve of the companys new vacation policy. A few Armtech employees leave the company before having worked 700 hours. Most Armtech employees were not aware that the company planned to change its vacation policy until after it had already done so. A significant portion of Armtech employees stay with the company long enough to work for 1,200 hours. Armtechs new vacation policy closely matches the vacation policies of competing temporary employment agencies. 2 The global population of frogs has declined in recent years while the amount of ultraviolet radiation reaching the Earth has increased. Since the genetic material in | 
