大牛中牛小牛都请进帮忙解释下呗

jackba8888

Last August the XT chain of gasoline station had a temporary sales promotion in effect. In the promotion ,any customer who made a purchase of ten or more gallons of gasoline was entitled to a free car wash. For the month of August, XT experienced a ten percent increase in gasoline sales as compared to sales in August the previous year, so evidently the promotion was successful as a means of boosting sales.

In evaluating the argument, it would be most helpful to answer which of the following?


A. In the areas in which XT's gasoline stations operate, how did total combined gasoline sales for all gasoline stations last             August compare with sales for the previous August?


B. Was the money that XT earned from the increase in gasoline sales enough to offset the cost of providing free car washes during the promotion?


C. Were there any customers who bought ten or more gallons at an XT gasoline station during the promotion who would have or more gallons at an XT gasoline in lower quantities, but more frequently, if the promotion had not been in effect?


D.Did XT or any of its gasoline stations have to pay other businesses to provide the car washes that customers were offered in the promotion?


E. Are XT's gasoline sales in August usually significantly higher than one twelfth of XT's annual gasoline sales?


跪求解释，为什么答案选A，B为什么对啊。

donkid

同意2楼，evaluate题是回答yes就是support，回答no就是weaken，也只有A可以。B作为干扰项迷惑性较大，因为文中只说revenue和方法effective的关系，与成本无关，例如：有些企业赔本赚吆喝也要提高销量？这么想你就能明白了。

jackba8888

挺有道理，谢谢哈

芸梦泽

本题选A，B不对

我的理解是，题目结论是：很明显，作为提升汽油销量的一个手段，这次促销非常有效
                    证据是：促销实行后，今年8月汽油销量比去年8月增长了10%
                    问题是：那个选项最能帮助评价这个argument

注意问题说的是promotion增加了汽油销量，跟利润没有任何关系，也就是说不管你免费赠送洗车要花多少成本都没有关系，只要使销量增加了，那就是有效的方法，所以问题重点应该放在是否增加sale上，而与能不能cover成本无关

A说在这个汽油站附近的地区，其他汽油站的销量和去年8月份比是不是也增长了10%，如果答案是肯定的，那就说明promotion无效，如果答案是否定的，则有效。因此A就能evaluate这个argument。

B说cover成本，和结论无关，排除

jackba8888

顶