16.生物大分子在生物体的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接成链或环从而形成各种生物大分子可以说地球 Template




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tomski16.生物大分子在生物体的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接成链或环从而形成各种生物大分子可以说地球 coloring