Although fullerenes--spherical molecules made entirely of carbon---were first found in the lab, they have since found in nature, formed in fissures of the rare mineral shungite. Since lab synthesis of fullerenes requires distinctive conditions of temperature and pressure, this discovery should give geologists a test case for evaluating hypotheses about of the Earth's crust at the time these naturally occuring fullerenes were formed.
which of following, if true, most seriously undermines the argument?
A Confirming that the shungite genuniely 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 carbons, 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.
我选了E,答案说是d
但是我实在看不出这题到底哪个选项对,,所以选了一个认为最接近的d,但是......希望NN或路过的给小弟提点一下
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