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