PREP1-Q1~求助NN~

evelyn205205 · 发表于 2011-7-23 17:05:02

Although fullerenes--spherical molecules made entirely of carbon--were first found in the laboratory, they have since been found in nature, formed in fissures of the rare mineral shungite.Since laboratory synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypotheses about the state of the Earth's crust at the time these naturally occurring fullerenes were formed.

Which of the following, if true, most seriously undermines the argument?

(A) Confirming that the shungite genuinely contained fullerenes took careful experimentation.

(B) Some fullerenes have also been found on the remains of a small meteorite that collided with a spacecraft.

(C) The mineral shungite itself contains large amounts of carbon, from which the fullerenes apparently formed.

(D) The naturally occurring fullerenes are arranged in a previously unknown crystalline structure.

(E) Shungite itself is formed only under distinctive conditions.

答案：D。
各位NN，其实这段逻辑我是压根就没看懂，麻烦帮我解释一下好么，为什么E不对？

evelyn205205 · 发表于 2011-7-23 19:50:00

求NN的帮助~

evelyn205205 · 发表于 2011-7-23 20:12:33

求解啊求解~

evelyn205205 · 发表于 2011-7-24 10:21:08

有米有人来帮帮我~

evelyn205205 · 发表于 2011-7-24 11:02:44

up~~~

evelyn205205 · 发表于 2011-7-24 13:59:50

来帮帮我吧，NN们！

evelyn205205 · 发表于 2011-7-24 15:20:25

NN们，你们在哪里？

evelyn205205 · 发表于 2011-7-24 19:40:53

为什么还是米有人理我？？？心冷了~

evelyn205205 · 发表于 2011-7-24 20:17:17

继续顶~

evelyn205205 · 发表于 2011-7-24 21:47:57

怎么还是没人啊，哎~

本贴相关题目 GMATPrep-2007E1-CR-1 (LNWU)

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PREP1-Q1~求助NN~

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