※ 引述《amo18 (要打什麽啦)》之铭言： : 不好意思 因为伤咖上不去 : 所以有问题就只能来这里请教了 : 想请问几题CR的问题 : 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. 我试着解释看看 解释错请勿见怪 原文说地质学家认为地壳中fullerenes会自然地被形成 (他也可以在实验室中在特定条件 下 被合成出来) A:只说实验要很小心 --->无关 B:只说明有些fullerenes的来源 并不能因此反驳地壳无绝对无自然形成的fullerenes C:支持 D:这些fullerenes的结晶结构前所未见:照理说地壳的各种物质结晶应该都被地质学家们 所知 而他的结晶竟然是前所未见 表示他形成的条件非常特殊 这样的情况下某程度削 弱了地质学家的看法 E:只说必须在特定的条件下才会形成 不代表地壳无自然形成的fullerenes : (E) Shungite itself is formed only under distinctive conditions. : 这题找反驳 但我其实看不太出来D和原文的反驳怎麽建立的? : 我选了B 错了 想请教 -- No doubt, just keep walking --

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