prc391

Đáp án tham khảo, có thể sai: 1a, 2a, 3be, 4d, 5b, 6b, 7a, 8a, 9de, 10d, 11b, 12be, 13a, 14d, 15a, 16c, 17a, 18b, 19c, 20a, 21be, 22a, 23d, 24c, 25c, 26a, 27d, 28d, 29b, 30a, 31a, 32d, 33b, 34c, 35c, 36d, 37d, 38d, 39d, 40a, 41a, 42a, 43a, 44c, 45b, 46d, 47b, 48a, 49c, 50c, source ...