请教

bingc2012

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

为什么不选B呢？

kiwiya

这道题是推断题，需要你从题干的信息推理。
B选项说富人捐款是唯一来源，这就忽略他因了。虽然富人捐款可能是很大一部分，但不一定是全部，可能有1%的捐款来自平民，这样的话慈善机构失去了99%的捐款也还是要关门的。

kiwiya

以后再CD求助，可以把你的思路贴上来，这样才能“对症下药”。加油！

bingc2012

谢谢，你说的对！

Lenalalalala

文中的逻辑是 针对富人的税收减免的政策取消的话，很多慈善机构会受负面影响。
中间的gap是 政策会导致 什么变化 进而影响慈善机构！！

B：即使税收减免取消，富人也不一定会减少donation啊..

荒草

楼上的是正解.
最关键的是 B 选项没有推出富人就不donate了.