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by 王秀芝

ebook

《探索百科》包含了军事航天、科技发明、动物植物、自然探索、交通博览等有趣有益的多方面内容，既科学严谨，又深入浅出，利于培养中小学生热爱科学、探索未来的精神，提高孩子们的综合素质，让孩子在获得知识的同时享受阅读的乐趣。