Re: [問題] 一道邏輯的題目

看板GMAT (GMAT入學考試)作者Merica (美加文教)時間14年前 (2011/09/20 11:53)推噓0(0推 0噓 0→)

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答案D，其意為自然界形成的fullerenes；其分子結構組成方式為之前人類所不知的結構，即表示雖然文章第一句談到fullerenes第一次是在實驗室中被發現，但實驗室中發現的分子結構與自然界所發現的卻不同，既是不同分子結構，當然形成的條件（溫度、壓力等）也不同，故文章結論要藉實驗室中形成的條件來推論自然界形成的條件當然就不成立。註：fullerenes是完全由碳組成的球形分子結構，其形狀可不同。（以上內容由美加黃冠文老師提供） ※ 引述《Daniel19 (小美)》之銘言： : 剛剛在做題目，碰到問題，請高手解答 : 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. : 拜託大家了~ -- ▅▅▅▅ ▅▅ ▅▅▅ ▅ ▅▅ ▅▅▅ █ █ █ █▅ █▄█ ▄ █ █▄█ █ █ █ █▄ █◥▅ █ █▅ █ █ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 111.248.108.168