B、即使L地区能够继续这样发展下去,I地区采用同样的方法后,也不一定能够成功。因为两个地区存在着很多不同,例如I地区的居民不太喜欢购买彩票,或者说I地区的居民收入不太高,他们不太会在彩票上投入资金。另外,I地区实行彩票后,可能会带来一些负面影响,例如有些居民可能会沉溺于彩票当中,从而耽误了正常的工作和生活。
C、文中的调查是否具有说服力值得商榷,作者并没有交待该调查的样本基数以及样本是否随机化。如果样本基数不够或者样本选择缺乏随机性,则该调查不具有说服力。另外,该调查只在Capital City进行,并不能够代表I地区。即使该调查具有说服力,I地区平均人均花费$50在赌博上,I地区的居民也未必会将这些钱用于购买彩票。赌博和彩票属于两个不同的概念。
17.The following appeared in a letter to the editor of the Walnut Grove town newspaper.
Walnut Grove s town council has advocated switching from EZ Disposal to ABC Waste, because EZ recently raised its monthly fee from $2,000 to $2,500 a month, whereas ABC s fee is still $2,000. But the town council is mistaken; we should continue using EZ. EZ collects trash twice a week, while ABC collects only once. Moreover, EZ-which, like ABC, currently has a fleet of 20 trucks-has ordered additional trucks. Finally, EZ provides exceptional service: 80 percent of respondents to last year s town survey agreed that they were satisfied with EZ s performance.
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