GWD-8-22题，为什么B不行？

GWD8用基本工具--文本选择工具HIGHLIGHT后复制按钮是灰色的，不能复制，求助。

就是油画的那题，为什么B不行(under current standard)？

多谢。

Q22:

When storing Renaissance oil paintings, museums conform to standards that call for
careful control of the surrounding temperature and humidity, with variations confined
within narrow margins. Maintaining this environment is very costly, and recent research
shows that even old oil paint is unaffected by wide fluctuations in temperature and
humidity. Therefore, museums could relax their standards and save money without
endangering their Renaissance oil paintings.

Which of the following is an assumption on which the argument depends?

A. Renaissance paintings were created in conditions involving far greater
fluctuations in temperature and humidity than those permitted by current
standards.

B. Under the current standards that museums use when storing Renaissance oil
paintings, those paintings do not deteriorate at all.

C. Museum collections typically do not contain items that are more likely to be
vulnerable to fluctuations in temperature and humidity than Renaissance oil
paintings.

D. None of the materials in Renaissance oil paintings other than the paint are
vulnerable enough to relatively wide fluctuations in temperature and humidity to
cause damage to the paintings.

E. Most Renaissance oil paintings are stored in museums located in regions near the
regions where the paintings were created.

多谢麻哥，链接在此，方便看到本贴又有同样问题的G友

http://forum.chasedream.com/dispbbs.asp?BoardID=22&ID=65894

同时，麻哥对本题发表点意见拉

I think the answer is C;

B can not undermine the reasoning of the passage.

recent research
shows that even old oil paint is unaffected by wide fluctuations in temperature and
humidity (evidence).Therefore, museums could relax their standards and save money without
endangering their Renaissance oil paintings(conclusion).

So whatever B is true or not, it can not break the fact (old oil paint is unaffected by wide fluctuations in temperature and humidity).

C points out no other items will be affected by wide fluctuations in temperature and humidity, so it's the assumption.
humidity

谢谢LEEON

GWD8的答案给的是D(B)，说明作者倾向于D，但没有完全排除B

之前没有人问这题，大家对这一有争议的问题怎么看呢？

多多讨论

这个题目是问support啊，不是undermine

I read the passage again,I will change my answer to D;

C eliminate other items can cause the conclusion looks like the correct answer, in fact, it's not, C compares  items( that are more likely to be vulnerable to fluctuations in temperature and humidity) with Renaissance oil paintings, but the passage said even old oil paint was unaffected by..., it did not say Renaissance oil paintings were affected or not,even if it said  Renaissance oil paintings are unaffected, C also  would not be the correct answer, in that if other items that are more likely to be vulnerable to fluctuations in temperature and humidity than Renaissance oil paintings exist, they (other items) also could be unaffected by....

B is not the answer, B said those paintings do not deteriorate at all, there is some defferent between deteriorate at all and affected. So B is not a necessary condition.

I'm puzzled by the word 'enough' and eliminated it at first glance. This is a difficult question.