乙烯和生长素都是重要的植物激素下列叙述正确的是 A.生长素是植物体内合成的天然化合物乙烯是体外合成的外源激素 b.生长素在植物体内分布广泛 Template




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tomski乙烯和生长素都是重要的植物激素下列叙述正确的是 a.生长素是植物体内合成的天然化合物乙烯是体外合成的外源激素 b.生长素在植物体内分布广泛 coloring