生物大分子在生物体生�活动中具有重要的作用碳原子本身的化学性质使 它能够通过化学键连结成链状或环状从而形成生物大分子以上事实可以说明 Template




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tomski生物大分子在生物体生�活动中具有重要的作用碳原子本身的化学性质使 它能够通过化学键连结成链状或环状从而形成生物大分子以上事实可以说明 coloring