College English (Unified Test B): This is relatively simple, because it is held in a school, the psychological quality will be better, improvisation will be better, and the topic will generally not be difficult. Listen carefully in class, take notes, review after class and tidy up.

CET-4: This is a little more difficult than the last one, but based on the online test skills of CET-4, generally speaking, it is not difficult to pass or get high marks as long as you learn skills and accumulate more words and sentence patterns.

Adult bachelor's degree English is relatively difficult, because it is more professional, mainly depending on the notes that the teacher said in class and his own notes, and what is the most important point. Basically, you only study this at work, which is even harder. When you come out to work, your study and memory will get worse.