逻辑真题 帮助一个绝望二战的苦B吧

700即可

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 fracture. When a number of follow-up x-rays were reviewed, however, 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?
A.Doctors who are general practitioners rather than orthopedists are less likely than orthopedists
to judge the stability of an ankle fracture correctly.
B.Many ankle injuries for which an initial x-ray is ordered are revealed by the x-ray not to involve
any fracture of the ankle.
C.X-rays of patients of many different orthopedists working in several hospitals were reviewed.
D.The healing of ankle fractures that have been surgically repaired is always checked by means of
a follow-up x-ray.
E.Orthopedists routinely order follow-up x-rays for fractures of bone other than ankle bones.
这个题选C。
用helr的方法看，C选项加强了样本的代表性。但是我不明白样本为什么是a number of follow-up x-rays，然后C选项就是加强了样本代表性。

几许VV

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 fracture. When a number of follow-up x-rays were reviewed, however, 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.

背景：那些骨折情况stable的人，都不需要手术，但是他们的orthopedists都怕自己误诊了，所以会给他们做一个follow-up x-rays
前提：review了一些follow-up x-rays，发现那些一开始被判断为stable的骨折，都被正确的治好了
结论：所以给被判断为stable的骨折做follow-up x-rays是浪费钱

如果按照Common sense的话：
假如你是批评家，你看到一个调查review了一些follow-up x-rays就说所有的follow-up x-rays都是浪费钱，你要怎么反驳？
你会不会想到，啊这个调查肯定不全面，说不定选的都是一些医术精湛的orthopedists的病人，所以这些病人才没被误诊，根本就不能代表全部的情况啊！
这个时候调查员要反驳你，来加强他的调查，他会怎么说？
他肯定会说，才不是呢！我们调查的可全面了，各个医院的很多不同的orthopedists的很多病人我们都看了！都是这个结果！我们才没有以偏概全呢！
那就是C呀


如果按照helr的方法的话，这个应该属于枚举推理：
一些follow-up x-rays的案例（即样本）被review了，发现其实这些骨折都没有被误诊，这个follow-up x-rays是浪费钱
CQ1:样本代表性问题，这些样本（也就是follow-up x-rays）是不是有代表性？
C选项：不同的医院的不同的orthopedists的不同的患者的follow-up x-rays都被review了——即说明了样本的多样性。

700即可

几许VV 发表于 2018-11-26 14:53
Often patients with ankle fractures that are stable, and thus do not require surgery, are given foll ...

哈哈 你好棒啊！敢问这次考了多少呀？？

几许VV

700即可 发表于 2018-11-26 15:01
哈哈 你好棒啊！敢问这次考了多少呀？？

730 打算继续考，一起加油！！

700即可

几许VV 发表于 2018-11-26 15:28
730 打算继续考，一起加油！！

好厉害！！！