求解GWD-YN-10 Q22

ssyy23

C 对

atlantis0724

解释得真好，尤其是“无需圈养，放养就够了”~~
谢谢，明白了不少

lemonsong

把og上的解释贴上来吧……

Argument Evaluation
Situation    Often patients with ankle fractures that their orthopedists have judged not to require
surgery are given follow-up x-rays to check whether the fracture healed correctly. An examination of a sample of those x-rays found that the ankle had, in each case, healed properly.
Reasoning The question is which of the options, iftrue, would most strengthen the argument. The argument is based on data concerning follow-up x-rays, each of which revealed no problem with the orthopedist’s initial judgment that the ankle fracture was stable (and would heal without surgery). This invites the question whether the follow-up x-rays are really needed. The argument concludes that they are a waste of money. But was the x-ray data truly representative of orthopedists generally? After all, some orthopedists—perhaps more experienced, better-trained, or employed at a facility with better staff or facilities—may be much better than others at judging ankle fractures. If we add the information that the data for the conclusion comes from many orthopedists working at many different hospitals, we have greater assurance that the x-ray data is representative, and the argument will be made much stronger.

A Neither the study nor the conclusion that is drawn from it concerns general practitioners, so this point is irrelevant.
B Naturally many ankle injuries do not involve fractures—x-rays may sometimes be used to
determine this—but the argument concerns only cases where there have been ankle fractures.
C Correct. This shows that the sample of x-ray data examined was probably sufficiently representative of cases of ankle fracture judged to be stable by orthopedists.
D The argument does not concern cases of ankle fracture that have been surgically repaired.
E The argument concerns only x-rays of ankles. From the information given here, we cannot infer that orthopedists are generally wasteful in routinely ordering follow-up x-rays.
The correct answer is C.

Vivian1091

crystalbain 发表于 2011-8-23 17:23
感谢楼上的指出这道题是OG 12的（verbal supplement），刚重新读了一遍OG 12的解释，发现前面的解释完全误 ...

14楼，我看了这个帖子http://forum.chasedream.com/thread-848982-1-1.html，觉得这句话是不是应该这么理解：

C.X-rays of patients of many different orthopedists working in several hospitals were reviewed.原文
Most X-rays of patients are reviewed by many different orthopedists working in several hospitals你的句子。

原文的意思应该是很多不同医院的，不同医生的，病人的，片子都被这样看过了。被谁看了？句子没说但是很明显，当然是被 病人自己住的医院的自己的对应医生看了。一个病人对应一个医生。意思是这个follow-up的片子有足够的代表性。当然医生看自己病人的片子，而不是大家互相看。这句话想强调的是样本的广度，样本就是病人的follow up的片子。
您的意思好像是有那么一撮病人，他们的片子被不同医院的，不同医生看了。
原文用了of，强调的是病人的片子，这个样本，是属于不同医生的，而这些不同的医生又是工作在不同医院的。然后，病人的片子被reviewed了。如果把句子换成by，很多病人的片子被不同医院工作的医生看了。这句话结束出来就我刚说的。所以我觉得gamc三个词里面连用两个of，用了这个ugly的句子，是想尽量避免歧义。啊呀妈呀，终于说服我自己了！

盗用一个链接中帖子举得例子，举个例子：
看到一个学校的大量女生的照片都是美女，就判断这个学校的女生都是美女。这个判断是不科学的；
但是如果这个照片范围涉及到不同年级不同班级，则增加了样本的可信度，就能起到正面支持作用。

我一开始也跟你理解一样，最后想的脑浆迸裂觉得这样解释最合理

如果上过统计课，这种方法貌似叫做分层抽样。意思有点像，不完全是

M猫Fishoo

Vivian1091 发表于 2013-8-2 15:19
14楼，我看了这个帖子http://forum.chasedream.com/thread-848982-1-1.html，觉得这句话是不是应该这么理 ...

原来是调查样本的问题 OG解释里的DATA是指之前为了得出结论所做的调查的data, 自己理解成对待以后病人的data..  现在明白了

estellegmat

同意五楼~反应的是普遍状况~把这个GAP填平了~就可以加强！

醒醒Shine

gtr 发表于 2010-2-5 04:55
Often patients with ankle fractures that are stable, and thus do not require surgery, are given f ...

完全明白了！谢谢！！

ZJPt找到M

Vivian1091 发表于 2013-8-2 15:19
14楼，我看了这个帖子http://forum.chasedream.com/thread-848982-1-1.html，觉得这句话是不是应该这么理 ...

赞，看了这个解释我终于明白了
一直以为C选项理解错了，看了别的帖子更加不明白，为啥C要那样翻译，现在终于明白了意思没理解错，而是数据说的是原文里的现象，而不是分析一个病人本身

克瑞斯

OMG！ GWD给的答案是B

克瑞斯

C 选项是针对 “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.” 里面样本充分性说的。

完全是C对，GWD竟然给B