2018年5月13日GRE逻辑机经提分必刷 复杂逻辑链一秒看懂从机经开始

2018年05月11日11:45 来源：小站教育作者：小站GRE编辑

参与（1） 阅读（8149）

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逻辑阅读

X-ray examination of a recently discovered painting—judged by some authorities to be a self-portrait by Vincent van Gogh—revealed an under image 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 the under image 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 is properly drawn 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 can be reliably attributed to van Gogh contain under images of subjects that appear on at least one other canvas that van Gogh is known to have painted.

C. Any painted canvas incorrectly attributed to van Gogh would not contain an under image 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 under image 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.

正确答案

C

题目解析

文章的逻辑链是新发现了一幅梵高的画里的底画中有一个女人的脸，而这张脸出现在别的梵高画中，因此新发现的这张梵高画必定是真品。选项C则是把这句话做了个双重否定，也就是任何不是梵高的画，一定不会包含曾在梵高的真画里出现过的底画的主题。意思是一样的，所以C正确。选项A和B里提到的作画风格和相似之处与本文逻辑推论链无关，因此错误。选项D和E则是推出了一个广义上的判断标准，也不适用于具体情况，因此也是错误的。

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