2 3 4 5 6 7 8 9 10 11 12 13 14 15 16TL D A C D B B D B A D B A D...

Câu 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16TL D A C D B B D B A D B A D B C C