Đáp án tham khảo, có thể sai nhé:
1E, 2D, 3C, 4A, 5A, 6A, 7D, 8A, 9B, 10A, 11C, 12B, 13B, 14E, 15F, 16A, 17B, 18B, 19C, 20A, 21A, 22A, 23C, 24C, 25B, 26C, 27C, 28F, 29A, 30C, 31C*, 32C, 33C, 34A, 35B, 36B, 37D, 38A, 39E, 40E, 41A, 42C, 43E, 44E, 45E, 46D, 47C, 48A, 49A, 50B