题目内容
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[主观题]
______ is a transparent crystalline carbon. A) Graphite B) Coke C) Diamond D) Charcoal
______ is a transparent crystalline carbon.
A) Graphite
B) Coke
C) Diamond
D) Charcoal
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发布时间：2022-01-06
题目内容
（请给出正确答案）
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