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by 陈晓丹

ebook

本书是一部针对当今青少年必备知识点、必学知识面的全面式教育的综合图书。它涵盖的知识面广：宇宙、地球、生物界、科学、世界历史、中国历史、国家与国际组织、军事、交通、产业及工程、文化、艺术等方方面面内容，是名副其实的青少年百科知识宝典。