请教OG11-112

112. In tests for pironoma, a serious disease, a false positive result indicates that people have pironoma when, in fact, they do not; a false negative result indicates that people do not have pironoma when, in fact, they do. To detect pironoma most accurately, physicians should use the laboratory test that has the lowest proportion of fase positive results.

Which of the following, if true, gives the most support to the recommendation above?

(A) The accepted treatment for pironoma does not have damaging side effects.

(B)The laboratory test hat has the lowest proportion of false positive results causes the same minor side effects as do the other laboratory tests used to detect pironoma.

(C)In treating pironoma patients, it is essential to begin treatment as early as possible, since even a week of delay can result in loss of life.

(D)The proportion of inconclusive test results is equal for all laboratory tests used to detect pironoma.

(E)All laboratory tests to detect pironoma have the same proportion of false negative results.

这题为何选E?不是很清楚,请高人指点.

影响检测正确率的因素有两个，一个是fase positive results， 一个是false negative results

原文说最正确的情况，是当fase positive results最少的情况。：）

不能忽略另一个影响因素，所以加一个support，说false negative results在任何测试出现的比例都一样。消除差异影响。：）E

关于这道题目的讨论帖：http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=90184&page=1

一语惊醒梦中人啊，多谢指点！

看懂了。。。哈哈