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c39hoperay123
2 năm trước
bài 1: 1 chai đựng đầy nước thì nặng 1350g. Nếu đựng 1 nửa nước thì nặng 750g. Hỏi khi chai không đựng nước thì nặng bao nhiêu gam? bài 2: người ta xếp các chữ cá LUATBIENVIETNAM thành 1 dãy LUATBIENVIETNAMLUATBIENVIETNAM..... hỏi chữ cái thứ 2013 là chữ gì?
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