请教一个GWD逻辑题，完全看不懂逻辑链。。。

cloudylee · 发表于 2012-7-17 21:24:16

1. Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-rays because their orthopedists are concerned about possibly having misjudged the stability of the facture. When a number of follow-up x-rays were reviewed, howere, all the fractures that had initially been judged stable were found to have healed correctly. Therefore, it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable.
Which of the following, if true, most strengthens the argument?

答案选的是：X-rays of patients of many different orthospedists working in several hospitals were reviewed.

pinkking · 发表于 2012-7-17 23:51:07

这样想，题目中出现的情况不一定能够证明这个检查是不必要的，如果这个数据仅仅来自一家医院，同时这家医院的医生都很牛逼，不会有失误，那么这个检查情况就不能推广到其他医院。但是选项这个排除了这个情况，同时说明数据是从不同医院，不同水平医生那里收集过来的，具有针对性。

也就是说，像我们写AWA一样，会质疑调查的可信性，这个选项就排除了这个嫌疑。

请教一个GWD逻辑题，完全看不懂逻辑链。。。

所属分类: GMAT考试

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