逻辑一道

Astridcai90UID：3132551

6.Which of the following most logically completes the
argument below？
In recent years, the proportion of car buyers who buy new cars rather than used cars has declined．Some consumers have attributed this change to an increase in new-car prices．As evidence of the price increase, they cite figures that show that, even adjusting for inflation, the price that the buyer of a new car pays, on average, is far higher now than a few years ago．This evidence is unpersuasive, however, because


(A)the value of a car that is bought new declines
much more rapidly than does the value of a
car that is bought used
(B)after someone has bought a car, it might be
several years before that person next buys
a car
(C)a decline in the proportion of car buyers who
buy new cars must necessarily mean that the
proportion who buy used cars has increased
(D)the relative increase in used-car sales might be
explained by the decisions of only a small
proportion of all car buyers
(E)the change in the average price paid for a new
car could result solely from more people's
rejecting inexpensive new cars in favor of used
cars


答案选E, 但是不知道为什么, 还有就是为什么C是错的啊

苏梳眠UID：2717864

现象：the proportion of car buyers who buy new cars rather than used cars has declined，
原因：the price that the buyer of a new car pays, on average, is far higher now than a few years ago
结论：Some consumers have attributed this change to an increase in new-car prices
要找到否定上述推断的选项。
关键注意上述，是新车平均价格的上涨还是新车的购买平均价格上涨，两者是存在出入的。
C中说，新车都买比率下降，那么旧车购买比率就一定上升。No，很有可能旧车购买比率持平。而且这里，也与上述主题无关。
E，给出了价格变化另外的解释。整体车的价格可能还是很低的，只是大家不愿意去买便宜的新车，从而导致了新车的购买价格的上升。这里也揭示了新车的购买平均价格和新车平均价格之间的区别。