根尖的分生区的细胞特征是 A细胞比较大排列不够整齐具有保护作用b下部细胞较小越往上细胞越大c细胞很小排列紧密并通过分裂 Template




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tomski根尖的分生区的细胞特征是 a细胞比较大排列不够整齐具有保护作用b下部细胞较小越往上细胞越大c细胞很小排列紧密并通过分裂 coloring