gwd-24-22,近期jj有类似题目

sunnyfield

24-22 Often patients with ankle fractures that are stable, and thus do not require surgery, are given follow-up x-ray because their orthopedists are concerned about possibly having misjudged the stability of the fracture. When 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.

答案选B.我虽也碰对了,但是不得其解.牛人开导开导.马上要考了,急呀....

lawyer_1

答案为C，不是B。C的意思是原文REVIEW的例子有代表性，故支持结论。原文说的是FOLLOW-UP RAYS有没有必要，B说的是第一次的RAYS，无关。

cranberry

我考试的时候就遇到了这道题目，不过选项变了。

sunnyfield

cranberry, 你还记不记得你的选项呀，分享一下吧。还有，我好像想通了，大家帮忙讨论。

我觉得还应该是B.

文中的说法是：如果一开始的 X-ray 结果是ankle fracture is stable,就不再需要后续的检查。原因是调查结果发现stable ankle fracture healed corrected.

问要加强？

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.

说明 在ankle injuries中没有发现injuries 是由ankle fracture 引起的。也就说明了stable ankle fracture 会自己愈合，不会恶化。

不知道理解得是不是有误，请指点。

lawyer_1

1。原文推理应该是：因为很多FOLLOW-UP的X-RAY发现所有被诊断为（不是一开始的X-RAY）STABLE骨折的都愈合的很好。所以对这种骨折FOLLOW-UP的X-RAY不必要。请体会和你说的推理的区别

2。即使你说的原文推理是对的，B也不是答案。因为你说的推理的原因是开始X-RAY为STABLE的骨折的的情况。而B是说很多INJURIES，不一定是STABLE的，更不是骨折FRACTURES。

hao198082

ding

[此贴子已经被作者于2004-11-28 12:26:11编辑过]

pinkrouge

请lawyer 同学讲一下选C的原因好么， 我怎么觉得答案好像都没什么关系，后来选了E

lawyer_1

C的意思是原文REVIEW的例子有代表性，故支持结论

pinkrouge

没觉得亚，有看了一边题目，还是觉得C是无关选项，REVIEW了又能说明什么呢？

lawyer_1

原文推理为：检查大批follow-up x-rays ，发现最初诊断为stable骨折的都愈合得很好。所以follow-up x-rays 是不必要的。

答案C：这些follow-up x-rays 来之于很多不同医院的不同医生的病人。即这些具有广泛的代表性。能说明问题，即说明初诊断为stable骨折的都愈合得好，所以follow-up x-rays 其实是不必要的。