侧芽部位的生长素浓度总是高于顶芽但顶芽产生的生长素仍大量积存于侧芽部位这说明生长素进入侧芽细胞的方式是 A.渗透作用b.自由扩散c Template




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tomski侧芽部位的生长素浓度总是高于顶芽但顶芽产生的生长素仍大量积存于侧芽部位这说明生长素进入侧芽细胞的方式是 a.渗透作用b.自由扩散c coloring