Advertisement：today's customers expect high quality. every advance in the quality of manufactured products raises customers' expectations. the company that is satisfied with the current of its products will soon find that customers are not. At Megacorp, meeting and exeeding customers' expection is our goal. which of the following must be true on the basis of the statements in the advertisement above. A. Megacorp's competitors will suceed in attrcating costomers if those competitors adopt Megacorp's goal as their own. B A company that does not correctly anticipate the expectations of its customers is certain to fail in advancing the quality of its product. C Megacorp's goal is possible to meet only if continuing advances in product quality are possible. D If a company becomes satisfied with the quality of its products, then the quality of its product is sure to decline. E. Megacorp's customers are currently satisfied with the quality of its product.
选C，看了一下之前的帖子，也有人问过这题的充分必要性的问题，但没解决==
C中说only if 我觉得不妥，文章中并没有说 只有这一个办法才能使 M公司meet its goal啊
文中的逻辑链是 increase quality推meet expectation，meet expectation is M's goal
C中的逻辑链是 meet M's goal推 increase product quality和原命题正好是逆命题啊，不等价！！OH...自从听了费允杰的音频关于各种逆否命题。。。对于归纳就越发模糊了。。。。。。。。。 | 
