Đáp án tham khảo có thể sai: 1a, 2c, 3d, 4d, 5c, 6c, 7c, 8c, 9e, 10a, 11d, 12e, 13e, 14c, 15a, 16a, 17b, 18e, 19b, 20a, 21b, 22c, 23b, 24c, 25d, 26b, 27c, 28c, 29a, 30d, 31b, 32a, 33a, 34a, 35c, 36a, 37e, 38b, 39d, 40a, 41d, 42b, 43a, 44b, 45c, 46a, 47b, 48b, 49e, 50a, source : MKT101_FA23_FE_798731