HS Việt Nam giành 20 HCV tại Cuộc thi Vô địch các đội tuyển Toán thế giới
Cuộc thi Vô địch các đội tuyển Toán thế giới (WMTC) lần thứ 7 diễn ra từ ngày 23 - 27/11 tại thủ đô Seoul (Hàn Quốc). Đoàn học sinh Việt Nam đã xuất sắc giành được 20 Huy chương Vàng...
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