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[逻辑小分队] CR 题目讨论,求助,谢谢!

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楼主
发表于 2017-9-5 13:46:51 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
If the statements above are true, which of the following must be true?
Box office receipts for independent movies for the first half of this year have increased by 20 percent over the total receipts for independent movies for all of last year. Last year, 50 independent movies were released, while so far this year only 20 independent movies have been released. The number of independent movies slated for release in the second half of this year is roughly equal to the number released so far.
A The total box office receipts for independent movies this year will be significantly more than 20 percent greater than the receipts for independent movies last year.
B The number of independent movies released in the first half of this year is equal to the number released in the first half of last year.
CThe price of a movie ticket has not increased since last year.
DThe average revenues of the independent films released during the first half of this year is greater than that of all independent films released last year.
E The number of people seeing independent movies during the first half of this year is greater than the number who saw independent movies last year.

我的答案是A,资料给的答案是D
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沙发
发表于 2017-9-6 15:54:48 | 只看该作者
A 显然不对,没有任何证据可以证明下半年仍然会保持增长,也许就停在20%了对不对?B也是,毫无证据证明上半年的发片数=去年上半年发片数。文章里只说了今年下半年独影数=今年上半年独影数。C 选项文章里更是一个字都没提过票价,E也是,文中没有提过观影人数一个字,只说了票房上涨,而造成总体票房收入增加20%有可能是观影人数增加,也有可能是票价上涨。但是到底是哪一个的增长,文中都没有透露。只有D是可以从现在文中给出的信息退出来的,去年全年独影票房=A 去年全年独影数=50; 今年上半年独影总票房=1.2A  今年上半年独影上影数=20  ;所以去年平均=A/50 必然小于 今年上半年平均=1.2A/20

我觉得Ron在阅读课上说的那句 don't make guesses 真的对CR也适用。
板凳
 楼主| 发表于 2017-9-6 16:51:50 | 只看该作者
hamuco 发表于 2017-9-6 15:54
A 显然不对,没有任何证据可以证明下半年仍然会保持增长,也许就停在20%了对不对?B也是,毫无证据证明上半 ...

同意!               
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