生物与环境学院举办以“春分”为主题的系列活动，旨在让大家亲近自然，感受春天的美好。

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据《尚书·尧典》记载，节气最早根据昼夜最长最短和昼夜等分，有了二分二至的概念。后来，《吕氏春秋》又在二分二至的 ...

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