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1. (24179-!-item-!-188;#058&000705) 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，我看了很多解答依然没有理解。
很多人说因为D是unknow, 割裂了关系。可是本来文章的结论就是要通过natural fullerenes去推测crust state，如果以前的structure已经知道了， 那还有什么好推测去evaluate的？
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发表于 2014-6-18 10:53:21
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