考试时间：2011年12月3日

考试地点：北美

　　issue：

Societies should save endangered species only when the potential extinction is caused by human activities.

argument：

"Of the two leading real estate firms in our town—Adams Realty and Fitch Realty—Adams Realty is clearly superior. Adams has 40 real estate agents; in contrast, Fitch has 25, many of whom work only part-time. Moreover, Adams’ revenue last year was twice as high as that of Fitch and included home sales that averaged $168,000,compared to Fitch’s $144,000. Homes listed with Adams sell faster as well: ten years ago I listed my home with Fitch,and it took more than four months to sell; last year, when I sold another home, I listed it with Adams, and it took only one month.Thus, if you want to sell your home quickly and at a good price, you should use Adams Realty."

Write a response in which you examine the stated and/or unstated assumptions of the argument.Be sure to explain how the argument depends on these assumptions and what the implications are for the argument if the assumptions prove unwarranted.