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Although fullerenes--sphericalmolecules made entirely of carbon--were first found in the laboratory, theyhave since been found in nature, formed in fissures of the rare mineralshungite. Since laboratory synthesis offullerenes requires distinctive conditions of temperature and pressure, thisdiscovery should give geologists a test case for evaluating hypotheses aboutthe state of the Earth's crust at the time these naturally occurring fullereneswere formed. Which of the following, if true,most seriously undermines the argument? (A) Confirming that the shungitegenuinely contained fullerenes took careful experimentation. (B) Some fullerenes have also beenfound on the remains of a small meteorite that collided with a spacecraft. (C) The mineral shungite itselfcontains large amounts of carbon, from which the fullerenes apparently formed. (D) The naturally occurringfullerenes are arranged in a previously unknown crystalline structure. (E) Shungite itself is formed onlyunder distinctive conditions.
答案是D
我已开始做错了。。。后来分析了一下大家给帮忙看看对不对：
文中说F的在实验室中形成条件的特殊性>>>可以帮助去评价自然界中的地壳相关的假设，问的是削弱，削弱原因，也就是找实验室F的特殊性推不出来自然界中的东西，也就是其条件特殊性与自然中F无关。
D说自然形成的F是在某种未知晶体里，也就是说要是去评价自然界中的地壳相关的假设，也是去看其晶体形成的条件，而不是F形成的条件，所以削弱。。。
这么想对么。。。请大家指正一下。。。或者说说怎么想就更好了。。。我觉得好绕啊= =。。
O(∩_∩)O谢谢
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发表于 2014-7-8 20:25:39
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