About this ebook
?本书内容十分丰富，涉及范围广，上论天文，下讲地理，中谈人事，从自然科学到社会科学，从社会生产到社会生活，从帝王将相如何治国到老百姓如何处世做人等等，包罗万象，无所不有。
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