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标题: PREP1-Q1~求助NN~ [打印本页]

作者: evelyn205205 时间: 2011-7-23 17:05
标题: PREP1-Q1~求助NN~
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？

作者: evelyn205205 时间: 2011-7-23 19:50
求NN的帮助~

作者: evelyn205205 时间: 2011-7-23 20:12
求解啊求解~

作者: evelyn205205 时间: 2011-7-24 10:21
有米有人来帮帮我~

作者: evelyn205205 时间: 2011-7-24 11:02
up~~~

作者: evelyn205205 时间: 2011-7-24 13:59
来帮帮我吧，NN们！

作者: evelyn205205 时间: 2011-7-24 15:20
NN们，你们在哪里？

作者: evelyn205205 时间: 2011-7-24 19:40
为什么还是米有人理我？？？心冷了~

作者: evelyn205205 时间: 2011-7-24 20:17
继续顶~

作者: evelyn205205 时间: 2011-7-24 21:47
怎么还是没人啊，哎~

作者: 尼采的羽毛笔 时间: 2011-7-24 22:29
这道题有点难的，我问老师说的确有点难，好多人都问她的说
这里其实要是fullerenes自然形成和在实验室形成的比较
所以要说明两者是不具备可比性的才能够构成削弱
The naturally occurring fullerenes are arranged in a previously unknown crystalline structure就很好的指出了自然形成的fullerenes是arranged in a previously unknown crystalline structure与实验室形成的与众不同的特点，说明实验室fullerenes不具备这种特性，两者就不具有可比性，所以对原文两者可比进行了削弱

作者: evelyn205205 时间: 2011-7-24 22:49

这道题有点难的，我问老师说的确有点难，好多人都问她的说
这里其实要是fullerenes自然形成和在实验室形成的比较
所以要说明两者是不具备可比性的才能够构成削弱
The naturally occurring fullerenes are arranged in a previously unknown crystalline structure就很好的指出了自然形成的fullerenes是arranged in a previously unknown crystalline structure与实验室形成的与众不同的特点，说明实验室fullerenes不具备这种特性，两者就不具有可比性，所以对原文两者可比进行了削弱

-- by 会员尼采的羽毛笔 (2011/7/24 22:29:47)

NN，你终于来了~谢谢你的解释哈，我再揣摩揣摩~

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