OG 10, 195让人生气的题目.

这道题目真是让人生气. 从解释来看, AB都是可以的, 可是B的问题是"太过啦". 不知道对于这类两个答案都没有错的假设题目,有没有排除标准.谢谢

195. A proposed change to federal income tax laws would eliminate deductions from taxable income for donations a taxpayer has made to charitable and educational institutions. If this change were adopted, wealthy individuals would no longer be permitted such deductions. Therefore, many charitable and educational institutions would have to reduce services, and some would have to close their doors.

The argument above assumes which of the following?

(A) Without the incentives offered by federal income tax laws, at least some wealthy individuals would not donate as much money to charitable and educational institutions as they otherwise would have.

(B) Money contributed by individuals who make their donations because of provisions in the federal tax laws provides the only source of funding for many charitable and educational institutions.

(C) The primary reason for not adopting the proposed change in the federal income tax laws cited above is to protect wealthy individuals from having to pay higher taxes.

(D) Wealthy individuals who donate money to charitable and educational institutions are the only individuals who donate money to such institutions.
            A

(E) Income tax laws should be changed to make donations to charitable and educational institutions the only permissible deductions from taxable income.
                

应该还是从相关无关入手吧。
题里面说A proposed change对Wealthy individuals产生某种影响。然后得出结论 many charitable and educational institutions会怎样怎样。那假设应该是建立买这两者之间的。
B里面只说了individuals而非Wealthy individuals。而且就算是the only source of funding，如果Wealthy individuals不因为该政策而减少donate即A里面得假设，也得不出最后的结论～

此提已经讨论过很多遍了

以下两个应该能帮助你，多用搜索功能，能更大程度上的解决你的问题。谢谢

http://forum.chasedream.com/dispbbs.asp?BoardID=24&ID=46489&replyID=&skin=1

http://forum.chasedream.com/dispbbs.asp?BoardID=24&ID=159364&replyID=&skin=1