环保小组的同学在对轻度污染的水域进行检测时�现蒲草细胞内某种有毒物质的含量远远低于其�围污水中的含量其直接原因是a.细胞壁对细胞的保护 Template




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tomski环保小组的同学在对轻度污染的水域进行检测时�现蒲草细胞内某种有毒物质的含量远远低于其�围污水中的含量其直接原因是a.细胞壁对细胞的保护 coloring