/images/1041385860215607387/1268777289584218162/chu-than-hac-diem-chu-than-dich-hac-diem-quyen-2-chuong-12-chan-danh-chi-thach.txt?ex=66ada86e&is=66ac56ee&hm=4a11c80b2ee7ae599f2a9fda5acdf1ebf2ddb4477c7f48a795ca55c9531319a1&