24. Until recently it was thought that ink used before the sixteenth century did not contain titanium. However, a new type of analysis detected titanium in the ink of the famous Bible printed by Johannes Gutenberg and in that of another fifteenth-century Bible known as B-36, though not in the ink of any of numerous other fifteenth-century books analyzed. This finding is of great significance, since it not only strongly supports the hypothesis that B-36 was printed by Gutenberg but also shows that the presence of titanium in the ink of the purportedly fifteenth century Vinland Map can no longer be regarded as a reason for doubting the map’s authenticity.
The reasoning in the passage is vulnerable to criticism on the ground that
(A) the results of the analysis are interpreted as indicating that the use of titanium as an ingredient in fifteenth-century ink both was, and was not, extremely restricted
(B) if the technology that makes it possible to detect titanium in printing ink has only recently become available, it is unlikely that printers ore artists in the fifteenth century would know whether their ink contained titanium or not
(C) it is unreasonable to suppose that determination of the date and location of a document’s printing or drawing can be made solely on the basis of the presence or absence of a single element in the ink used in the document.
(D) both the B-36 Bible and the Binland Map are objects that can be appreciated on their own merits whether or not the precise date of their creation or the identity of the person who made them is known.
(E) the discovery of titanium in the ink of the Vinland Map must have occurred before titanium was discovered in the ink of the Gutenberg Bible and the B-36 Bible .
以下是引用superkun在2003-12-8 17:06:00的发言： 我觉得是这样理解的，说the presence of titanium in the ink of the purportedly fifteenth century Vinland Map不能作为怀疑其真假的理由，可以推出这种墨水比较流行，和前面的结论矛盾
其实你自己的解释挺好的啊 前面说not in the ink of any of numerous other fifteenth-century books analyzed，暗指这种墨水的使用在那个时期是extremly restricted， 但后面竟然又说the presence of titanium in the ink of the purportedly fifteenth century Vinland Map can no longer be regarded as a reason for doubting the map’s authenticity，有冒出来一个也用这种墨水的vinland地图，那么墨水的使用又是 not extremly restricted的了，所以是A
以下是引用superkun在2003-12-8 17:06:00的发言： 我觉得是这样理解的，说the presence of titanium in the ink of the purportedly fifteenth century Vinland Map不能作为怀疑其真假的理由，可以推出这种墨水比较流行，和前面的结论矛盾
怎么推出这种墨水比较流行的呢？ 既然以Map中含有T为理由得出Map是15世纪的，就说明ink中含T在15世纪是很流行的。 而“detected titanium in the ink of the famous Bible printed by Johannes Gutenberg and in that of another fifteenth-century Bible known as B-36, though not in the ink of any of numerous other fifteenth-century books analyzed”：只在2种Bible中有，不在numerous books中有，又说明这种ink不流行。所以矛盾。
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发表于 2003-12-8 16:08:00
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