以下是引用forgetviviva在2006-9-12 6:38:00的发言：
Which if the following, if true, most logically completes the argument?
Aroca County’s public schools are supported primarily by taxes on property. The county plans to eliminate the property tax and support schools with a new three percent sales tax on all retail items sold in the county. Three percent of current retail sales is less than the amount collected through property taxes, but implementation of the plan would not necessarily reduce the amount of money going to Aroca County public schools, because ______.
A. many Aroca County residents have already left the county because of its high property taxes
- a shopping mall likely to draw shoppers from neighboring counties is about to open in Aroca County
- at least some Aroca County parents are likely to use the money they will save on property taxes to send their children to private schools not funded by the county
- a significant proportion of parents of Aroca County public school students do not own their homes and consequently do not pay property taxes
- retailers in Aroca County are not likely to absorb the sales tax by reducing the pretax price of their goods
我觉得D也可以阿，为什么选B呢？两个有什么程度的关系么？
题干说通过实施新计划不会减少投入到公立学校的钱，因为：
B. a shopping mall likely to draw shoppers from neighboring counties is about to open in Aroca County (将有一家吸引外埠客户来购物的商店在 Aroca County 开业，使通过向零售业征税的方式获得的总税款增加。）
D. a significant proportion of parents of Aroca County public school students do not own their homes and consequently do not pay property taxes （有相当一部分比例的父母没有自己的不动产，所以不用缴房产税。这种情况以前是这样，以后也将是这样。新措施的实施并不会给这种情况带来什么变化。系无关选项。） | 
