\u0110\u00e1p \u00e1n – \u0110\u1ec1 thi h\u1ecdc k\u1ef3 1 l\u1edbp 12 m\u00f4n To\u00e1n – THCS&THPT M.V.Lomonoxop 2018<\/a><\/blockquote><\/iframe>