天山-9-4

neverback

In the year following an eight-cent increase in the federal tax on a pack of cigarettes,
sales of cigarettes fell ten percent. In contrast, in the year prior to the tax increase, sales
had fallen one percent. The volume of cigarette sales is therefore strongly related to the
after-tax price of a pack of cigarettes.
The argument above requires which of following assumptions?
A. During the year following the tax increase, the pretax price of a pack of cigarettes
did not increase by as much as it had during the year prior to the tax increase.
B. The one percent fall in cigarette sales in the year prior to tax increase was due to a
smaller tax increase.
C. The pretax price of a pack of cigarettes gradually decreased throughout the year
before and the year after the tax increase.
D. For the year following the tax increase, the pretax price of a pack of cigarettes
was not eight or more cents lower than it had been the previous year.
E. As the after-tax price of a pack of cigarettes rises, the pretax price also rises.

MINE A

ANS D

请指教

Shuaishuai

天哪这题真饶！

我的理解：论题是税费增加第二年香烟销量减少10%和税后价格增加有关，题目给出信息是税费每合增加8分，但税前裸价变化没有信息，而税后价和这2者都有关系。于是D中给出了补充信息：第二年税前裸价并不比前年低8美分或以上，也就是说税前裸价没有下降到足以抵消税费增加的幅度，可能是降了5美分，甚至也可能是裸价提高了。这样得出的结论是第二年每合税后总价格（裸价+税费）确实是增加了，从而引起香烟销量剧降。

A选项只提到第二年税前裸价的增加幅度还没有其前一年增加的多，但没有提其前一年的税费变化，所以无从判断比较这两年税后价格的变化。

neverback

厉害!理解了

PFPF

aokceo

合税后总价格（裸价+税费）确实是增加了，从而引起香烟销量剧降。

合税后总价格（裸价+税费）增加了 就能 引起香烟销量剧降？没有联系啊！

题目需要的是找到税后价与销量减少的关系吧？我到觉得B要好些。虽然没有指明税后价，但有税的增加与销量的关系。

实在没有更好的答案！

请指教！

bettylzy

同意B.

eSpirit

D说明增税后的售价不低于（原来价格+8分）

Vincent829

支持D。

D假设今年一包烟的税前价不会比前一年的税前价少8美分甚至更多。再加上今年每包烟税为8美分。所以今年每包烟的税后价肯定大于去年。销量方面，今年销量减少更多。

因此，得出原文结论。销量和烟税后价有密切联系。

xinfaxian

这题也够恶心的！！！

小女公子

哎，又错了。

Avantasia

这题出的够水准, A这个错误选项太逼真了!