Under high pressure and intense heat, graphite, the most stable form of pure carbon, changes into the substance commonly referred to as diamond and remaining this way whether or not the heat and pressure are removed.
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Aremaining this way whether or not
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Bremaining like that even as
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Cremaining as such whether or not
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Dremains in this way although
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Eremains thus even when
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正确答案: E