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二十分翻译it was thought that at onetime compounds of carboon were only produced in living organism
人气:478 ℃ 时间:2019-12-07 12:52:07
解答
碳水化合物曾经一度被认为只能产生于生物之中.
重点词汇:
compounds of carboon 碳水化合物
living organism 生物
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