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