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题库 / Prep2012-CR-33
Theatergoer: In January of last year, the Megaplex chain of movie theaters started popping its popcorn in canola oil, instead of the less healthful coconut oi that it had been using until then. Now Megaplex is planning to switch back, saying that the change has hurt popcorn sales. That claim is false, however, since according to Megaplex's own sales figures, Megaplex sold five percent more popcorn last year than in the previous year.
Which of the following, if true, most seriously weakens the theatergoer's argument?
When it switched from using coconut oil to using canola oil, Megaplex made sure that the chain received a great deal of publicity stressing the health benefits of the change.
Megaplex makes more money on food and beverages sold at its theaters than it does on sales of movie tickets.
In a survey to determine pubic response to the change to canola oil, very few of Megapiex's customers said that the change had affected their popcorn-buying habits.
Total sales of all food and beverage items at Megaplex's movie theaters increased by less than five percent last year.
Total attendance at Megaplex's movie theaters was more than 20 percent higher last year than the year before.
e. 如果电影院的总观影人数增加了20%，而爆米花的消费只增加了5%，那么每个顾客的平均爆米花销量就下降了。因此，菜籽油的使用可能会阻碍顾客购买爆米花。
相对增长vs绝对增长
要削弱Theatergoer说的That claim is false，也就是说Megaplex自己说的没错，我们换油就是损害了销量，哪怕上涨了5%。
E完美，去年影院上座率上涨了20%，你才涨了5%，按理说你应该proportionable的20%，所以是换油影响了我增长更多，这点增长只是因为人多了，而不是油换了，甚至还是油换了影响了我上涨=油换了导致我下降。
这个说法是有问题的因为M去年比前年多卖了5%的爆米花。问weaken
choice e, M去年的观众人数比前面增加了20%， correct。观众增加20%而爆米花只增加了5%只能说明卖得不好
。。。。。 所以选e
读题的时候愣是把人家的sale上升5个percent想成了价格上升了5个percent？？蠢死了简直...T T
非常精妙的逻辑链：看似sale依然在上升，可是人家的整体影院上座率达到了20%！按理来说这个5%绝不仅仅是这么点的！！
（又为以后攻击是否上升/下降找到了一个好攻击点）
做错以后再来一遍立马就想明白了...
希望考试的时候不要钻牛角尖啊！！！
conclu: the change has not hurt popcorn sales.
因果
是跟油有关系吧 因为油不是客户所喜欢的 所以客户增加了20% 但爆米花销量才增加5%登录 或 注册 后可以参加讨论