【备考每日练】GMAT逻辑真题精选实例讲解（二十七练）
- 2015年06月24日16:09 来源：小站整理
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GMAT备考，除了背背背，更重要的就是练练练!通过练习，巩固知识，熟练技巧，最终才能在GMAT考试中发挥出色，取得好成绩，所以练习的重要性不言而喻。因此，小编为大家精心准备了GMAT考试各类题型的练习题和答案解析，帮助大家每日一练，为考试做好准备。一起来看今天的题目吧。
今日练习题为逻辑题，题目如下
A report that many apples contain a cancer-causing preservative called Alar apparently had little effect on consumers. Few consumers planned to change their apple-buying habits as a result of the report. Nonetheless, sales of apples in grocery stores fell sharply in March, a month after the report was issued.
Which of the following, if true, best explains the reason for the apparent discrepancy described above?
A In March, many grocers removed apples from their shelves in order to demonstrate concern about their customers’ health.
B Because of a growing number of food-safety warnings, consumers in March were indifferent to such warnings.
C The report was delivered on television and also appeared in newspapers.
D The report did not mention that any other fruit contains Alar, although the preservative is used on other fruit.
E Public health officials did not believe that apples posed a health threat because only minute traces of Alar were present in affected apples.
正确答案：
A
题目解析：
Premise：报道有问题的苹果产生很小影响，很少人会改变购买习惯。
Conclusion：然而销量还是下滑了。
问题是best explain，那么就要解释因果关系论证。
因为不是削弱，是加强，所以B，C很容易排除，无关选项。
D选项虽然可以联想其他水果会卖得更好所以这个苹果就相应少了，但是可以理解为间接因果关系，没有对直接因果关系进行论证，也就是没有让premise涵盖conclusion。
E选项也是无关选项，并不能起到任何加强或削弱。
所以选A。
