2. Face-to-face courses are taught face to face by teachers. The advantage is that students can ask their own questions to the teacher at any time, and the teacher can answer them, and they can take classes with many candidates, which is suitable for students studying in groups. The disadvantage is that the class time is fixed and you can't adjust the study time according to your own state.

3. the course of online school is to learn knowledge through the network, so the time is flexible. Students can study according to their study habits and learning status, and videos can be watched indefinitely. If you don't understand, you can go back to play at any time. The disadvantage is that you can't communicate with the teacher at any time. Questions need to be submitted to the Q&A platform, and the teacher will give you a reply within the specified time. This way of learning is suitable for office workers and candidates who like to study alone.