ĐÁP ÁN MÃ ĐỀ 231 1D, 2D, 3C, 4D, 5D, 6A, 7A, 8B, 9B, 10B, 11D, 12A, 13D, 14B, 15A, 16A, 17C, 18C, 19D, 20B, 21A, 22A, 23B, 24B, 25D, 26B, 27A, 28B, 29A, 30D, 31A, 32B, 33C, 34C, 35A, 36A, 37C, 38D, 39A, 40D, 41B, 42C, 43A, 44B, 45C, 46D, 47B, 48D, 49A, 50C, 51C, 52C, 53C, 54A, 55C, 56C, 57D, 58B, 59D, 60B