大全－I－17

17.   In the past year, there has been a large drop in the number of new cars sold, due to harsh economic conditions in the marketplace and high taxes. At the same time, the average price paid for a new car has risen dramatically.

Which of the following, if true, best explains the increase in the average price of a new car?

(A) The price of used cars has climbed steadily over the past ten years.

(B) There will be a tax reduction later in the year which is expected to aid moderate and low income families.

(C) The market for expensive car has been unaffected by the current economic conditions.

(D) Economic conditions are expected to get significantly worse before the end of the year.

(E) Low demand for trucks and vans has led to lower production in the factories.

答案是C

想请教选项E哪里错呢

因为供应减少的话,价格不是应该会增加吗

另外,C只说明The market for expensive car的需求不变,似乎不能解释increase price?!

谢谢!

我再看一遍后,自己试着解释,若有错误,请帮忙指正, thanks!

（C）便宜的的车子的销售数量减少，高价的销售数量不变，平均后价钱就会上升

(E) 部分的改变不能代表全体的average

E是无关的，CARS里究竟包括不包括trucks and vans ,文章没说，你也不知道。

可能包括，也可能不包括。另外也没有EVIDENCE说生产低,卖得少.

C这样的解释在OG,大全,GWD都有类似的题目，无非就是车换成了楼,或者收入，比如说低价的楼卖得少了，但是平均价格却上升了，因为高价得楼没有卖少，平均一下，价格自然就上了，类似的还有富人和穷人。记得这样的题目看到过4,5次了。

谢谢fiscal的回答