GWD-24-22

shuoshuqi

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.

答案是B，可以把选项和题目讲解一下吗，看的晕死了~~

非常感谢

[此贴子已经被作者于2004-10-22 23:51:22编辑过]

lawyer_1

我倾向于选A。不知B答案是否为官方答案。

原文结论为：对于裸折初步判断为稳定的，不必follow-up x-rays 。对这个结论的支持有两方面：一是orthopedists的判断较准确。二是follow-up x-rays 没意义。A表达了orthopedists对裸折的稳定性判断较准，至少是对结论有利的，所以有支持作用。B说得很泛，难以对结论起作用。它涉及的不是对裸折稳定性的判断，而且裸伤是否由orthopedists去做也没说。难以作答案。

horsefish

A是无关选项Doctors who are general practitioners 和原文没任何联系.

我选C.

shuoshuqi

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.

B什么意思？

请教

lawyer_1

很多需要x 光初步检查的裸伤，经X光检查没有骨折。

shuoshuqi

谢谢了！！明白了我觉得B对的

结论是说：it is a waste of money to order follow-up x-rays of ankle fracture initially judged stable.

B说开始检查的人就有很多没有骨伤的，那他们开始当然是STABLE 的了。

如果这些人再做FOLLOW-UP XRAYS，当然是浪费钱了，加强结论

不知道理解的对不对？请指教

lawyer_1

能否说明该题的来源和答案的来源。你的理解“B说开始检查的人就有很多没有骨伤的，那他们开始当然是STABLE 的了。”和原文偏差太大。原文在讲裸部骨择，即使是STABLE也是骨折，只是不需动手术罢了。整个TOPIC都在讲裸部骨折。不存在“没有骨伤，当然稳定”的说法，请细看原文。

horsefish

以下是引用lawyer_1在2004-10-22 8:47:00的发言：
能否说明该题的来源和答案的来源。你的理解“B说开始检查的人就有很多没有骨伤的，那他们开始当然是STABLE 的了。”和原文偏差太大。原文在讲裸部骨择，即使是STABLE也是骨折，只是不需动手术罢了。整个TOPIC都在讲裸部骨折。不存在“没有骨伤，当然稳定”的说法，请细看原文。

题目: http://forum.chasedream.com/dispbbs.asp?boardID=22&ID=74705&page=1

leeon

http://forum.chasedream.com/dispbbs.asp?BoardID=24&ID=66806

lawyer_1

同意C，C说原文检查的的那些X-RAYS跟踪检查来源于不同医院的矫正师。有广泛的代表性。支持证据，从而支持结论。A不好在对矫正师的水平是建立在比较的基础上，其对稳定性判断的可靠性仍未得到保证。