1.        GWD-29-Q38??

In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent.  Coponia is about to raise taxes on cigarettes by 9 cents per pack.  The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack.  So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent.

 Which of the following is an assumption on which the argument depends?

1. Tobacco companies are unlikely to reduce their profit per pack of cigarettes to avoid an increase in the cost per pack to consumers in Coponia.

2. Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes.

3. Any decrease in per capita sales of cigarettes in Coponia will result mainly from an increase in the number of people who quit smoking entirely.

4. At present, the price of a pack of cigarettes in Coponia includes taxes that amount to less than ten percent of the total selling price.

5. The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years.

答案是A. 请问A是怎么取非削弱的啊?谢谢

答案是A. 请问A是怎么取非削弱的啊?谢谢

原文说的是"烟草的价格上涨导致销量下降.然后说C的烟草加税,价格上涨,也会导致销量下降的."

A说的是"C不会牺牲利润来换取价格上涨."就是说C的烟草加税,价格上涨是必然的.也就是一定会销量下降.

对A取非不一定sales就会上涨。。。

打个比方：

Price1*Number1 = Sales1

Price2*Number2 = Sales2

涉及到两个变量，怎么取非就会有这个结果，这题我不赞成A。而且题干并没有说价格上涨的问题。

我觉得此题答案是D.

通过题目两个条件，第一，平均香烟每包多于 90 cents，第二,9cents最多占90 cents的10%。如果目前的tax已经高于10%，那整个就否定了题目的假设，是最好的weaken

但是，D也有一点问题。说得过于绝对，如果能够加一个average就非常完美了。但是比起A来多变量不清晰。D无疑是最好答案。。。

 Coponia is about to raise taxes on cigarettes by 9 cents per pack

哦，我错了。。。

是 by 9 cents per pack，不是 to 9 cents per pack

想请教各位大大们这题B选如何排除?

A选取非为T公司较可能降低每包烟利润目的避免销售价提高

这A取非后,脑袋转不回来如何WEAKEN结论???????

请好心的大牛帮帮忙…….