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[help] 每天都有问题厄厄...假设题

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发表于 2013-9-5 11:01:00 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
1. X-ray examination of a recently discovered painting- judged by some authorities to be a self-portrait by Vincent Van Gogh- revealed an underimage of a woman's face. Either van Gogh or another painter covered the first painting with the portrait now seen on the surface of the canvas. Because the face of the woman in underimage also appears on canvases van Gogh is known to have painted, the surface painting must be an authentic self-portrait by Van Gogh.
The conclusion above is probably drawn by if which of the following is assumed?
A. If a canvas already bears a painted image produced by an artist, a second artist who uses the canvas to produce a new painting tends to be influenced by the style of the first artist.

B. Many painted canvases that be reliably attributed to van Gogh contain underimages of subjects that appear on at least one other canvas that Gogh is known to have painted.

C. Any painted canvas incorrectly attributed to van Gogh would not contain an underimage of a subject that appears in authentic paintings by that artist.

D. A painted canvas cannot be reliably attributed to an artist unless the authenticity of any underimage that painting might contain can be reliably attributed to the artist.

E. A painted canvas cannot be reliably attributed to a particular artist unless a reliable x-ray examination of the painting is performed.

为什么不是B? 看过旧帖但是还是有点懂....

2.



答案是A.  为什么不选E呢?


还有, 有人说陈向东逻辑不是很好......是这样么?

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沙发
发表于 2013-9-6 09:38:05 | 只看该作者
建议你去看bible,第9章(加强,证实结论,以及假设)对假设题有专门的系统性讲解
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