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圓柱還是方柱?
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老人?老人、少女與狗?
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誰在上面?誰在下面?
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老人?三位赤裸的少女?
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平行的直線?
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有五還是十個孩子?
[thumbnail]http://anthony_chung_is.mysinablog.com/resserver.php?blogId=48752&resource=1375919-Visual%2012.jpg[/thumbnail]
看到甚麼?
黑點嗎?為甚麼看不到黑點以外,還有很多亮白的地方?
(引用於:
http://anthony_chung_is.mysinablog.com/index.php?op=ViewArticle&articleId=1170974)