Углерод и его аллотропные формы (1981)
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![[15.2] Углерод и кремний. Практика | ЕГЭ за 30 дней](https://sun9-8.userapi.com/M_HAAvcdnwuv9LkVKAo02lO4HwytoO1-UnozYQ/k2AqS9CFdWA.jpg)
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