想探讨一下OG-51这样的题型

jollypie

51. Guitar strings often go “dead”—become less responsive and bright in tone—after a few weeks of intense use.

A researcher whose son is a classical guitarist hypothesized that dirt and oil, rather than changes in the material properties of the string, were responsible.

Which of the following investigations is most likely to yield significant information that would help to evaluate the researcher’s hypothesis?

(A) Determining if a metal alloy is used to make the strings used by classical guitarists

(B) Determining whether classical guitarists make their strings go dead faster than do folk guitarists

(C) Determining whether identical lengths of string, of the same gauge, go dead at different rates when strung on various brands of guitars.

(D) Determining whether a dead string and a new string produce different qualities of sound

(E) Determining whether smearing various substances on new guitar strings causes them to go dead

答案选E没有问题，但是想明确一下，这种题型对答案有什么要求。我的理解是正确答案可能导致两种结果，一种必须是加强原推理，另一种必须是削弱原推理，二者缺一不可，不知道能不能指导一下这种理解对不对。

举个例子说，我给本题再编一个答案

F. Determining whether intense use of guita would lead to changes in the material properties of the string.若试验的结果是N,则为加强，若试验的结果是Y,并不是个削弱，请问这种类型的答案是对的吗？

流沙

评价题的原则就是，当答案为肯定的时候对文章加强，否定的时候削弱。你说的F是不对的，它其实是无关选项。

jollypie

非常感谢！

dream1111

我也给本题再编一个答案:

G. Determining whether protecting a new guiter strings from dirt and oil make it postpone to die??

In fact this is the ideal correct answer in my part. Go to my previous talking:

http://forum.chasedream.com/dispbbs.asp?boardID=24&ID=68573&page=1

[此贴子已经被作者于2004-9-13 10:54:08编辑过]