According to the inquiry of official website of Tianjin University of Finance and Economics, the main differences of English Class AB of Tianjin University of Finance and Economics are as follows:

1. Textbooks: The textbooks used in Class A are usually New Comprehensive College English Course and New College English Listening and Speaking Course, while the textbooks used in Class B are usually New Horizon College English Reading and Writing Course and New Horizon College English Listening and Speaking Course.

2. Mode of class: Class A is generally taught by teachers, with some group discussions and oral practice. Class B mode usually focuses on students' discussion and self-study, and the teacher only gives guidance and answers, emphasizing students' initiative and participation.

3. Test difficulty: The English test in Class A is relatively difficult, with high requirements on vocabulary, grammar, reading, writing and listening. The English test in Class B is relatively less difficult, but it is also challenging.

4. Learning objectives: Class A aims to cultivate students' comprehensive English quality and application ability, and prepare for future postgraduate English study and study abroad. Class B pays more attention to cultivating students' self-study ability and teamwork ability, and at the same time improves students' English level.