20.下列关于植物生�活动调节的叙述正确的是 A.乙烯仅在果实中形成并促进其成熟b.生长素浓度较低时会促进乙烯的合成c.生长素和赤霉素均 Template




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tomski20.下列关于植物生�活动调节的叙述正确的是 a.乙烯仅在果实中形成并促进其成熟b.生长素浓度较低时会促进乙烯的合成c.生长素和赤霉素均 coloring