3.下列叙述不正确的是 A.等物质的量的乙醇和乙酸完全燃烧时所需氧气的质量相等 B.天然气和沼气的主要成分是甲烷 c.纤维素乙酸酯油脂和蛋白 Template




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tomski3.下列叙述不正确的是 a.等物质的量的乙醇和乙酸完全燃烧时所需氧气的质量相等 b.天然气和沼气的主要成分是甲烷 coloring