请教费费135－107

107. Because of the recent transformation of the market, Quore, Inc., must increase the next two years, or it will certainly go bankrupt. In fact, however, Quore's production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable. If the statement above are true, which of the following must on the basis of them also be true?

(a) It is only Quore's production structure that makes it possible for Quore to survive the transformation of the market.

(b) Quore will not go bankrupt if it achieves a productivity increase of 20 percent over the next two  years.

(c) If the market had not beeen transformed, Quore would have required no productivity increase in order to avoid bankruptcy.

(d) Because of the transformation of the market, Quore will achieve a productivity increase of 10 percent over the next two years.

(e) If a 20 percent productivity increase is unattainable for Quore, then it must go bankrupt.

答案是e. 不知道是不是我手上的题目有问题，理解不了什么逻辑。请指教～

我是这样理解：

10％的productivity increase是企业存活的必要条件，即非A推出非B，先看选项找否定意思的，得B，E；选项B是A推非B，错；而E很别扭就是20％的概念。我觉得只能这样理解，10％达到了，企业就活了，而10％达到了20％一定达到，那企业必然会达到20％，选项E递推了一下，把10％的概念换成20％。这是最大的干扰。

不知道我这样理解可好？

这道题目搞的就是充分必要条件，我觉得最大的迷惑选项是D。我当时就选了D。

可简化题干的表述为：

transformation of the market（A）→Q increase its production（B）

Q not increase its production（非B）→Q will go bankrupt（C）

选项A的表述为：Q’s production structure→Q will not go bankrupt（非C），无法从题干中推出。

选项B的表述为：Q increase production（B）→Q will not go bankrupt（非C），为的逆命题， 不成立（原命题与其逆否命题等价）。

选项C的表述为：market had not been transformed（非A）→Q will not need to increase its production（非B），为的逆命题， 不成立（原命题与其逆否命题等价）。

选项D的表述为：transformation of the market（A）→Q will achieve a productivity increase10%，无法从题干中推出。关键是这个10%，文章中没有肯定

选项E的表述为：文章中有个前提是Increase10%→increase20%. 取非后即选项的意思Not  increase20%→not increase10%→Q not increase production（非B）→Q will go bankrupt（C），与一致。

我现在吃不准的是increase10%→Q not increase production这一步推理到底能够成立？

谢谢解答～ 所以我的题目没有错吗?  那可不可以认为是这道题出的有问题阿？

题目的前半部分是not increase→go bankrupt

后半部分是10％→20％

完全没有讲这两者的联系阿

或者应该是 Because of the recent transformation of the market, Quore, Inc., must increase 10% the next two years, or it will certainly go bankrupt.

还是这种题目的设计就是要你这样理解的？

absolutely consent with you

E选项也有问题把：

文中说In fact, however, Quore’s production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable.

如果是20%没能够获得，不代表10%不能获得啊

107. Because of the recent transformation of the market. Quore, Inc., must increase productivity 10 percent over the course of the next two years, or it will certainly go bankrupt. In fact, however, Quore’s production structure is such that if a 10 percent productivity increase is possible, then a 20 percent increase is attainable
                

我一開始認為E有問題，我認為应该把20%改成10%?或者把文中的条件10%改成20%？，但我再做題做到feifei132後，再回頭想這題就有新想法。

我認為 E選項就是逆否命題。A(市場轉變)→B(一定要增加10%生產力)(否B-會破產)→C(增加20%生產力必然可達成)

E選

E.        If a 20 percent productivity increase is unattainable for Quore, then it must go bankrupt.

不就是 否C→否B 

就是正確選項阿！