Hello, I'm also from Beijing University of Technology, 09. Total * * * is divided into compulsory courses, basic elective courses, professional elective courses, professional limited courses, general education and engineering elective courses. As for the basic compulsory courses, elective courses and limited courses, they will be automatically typed in the curriculum, so you don't have to worry about this part. (Note that you can drop out of this course, but don't drop out easily, because the credits of these elective courses will make you learn 2-3 points at most. If you don't reach the elective credits when you graduate, these credits will be handed in. ) And there are two kinds of 16 you said: one is science elective and the other is liberal arts elective. There are not many courses in general education (I don't know if you are a Korean major because I have to go abroad for one year, so I can't take it in my junior year after going abroad for one year).

Oh, one more thing for you: just choose general education and engineering when choosing courses, and don't worry about the rest. It is best for liberal arts to choose humanities college with high score. Do you remember that science didn't choose Auto CAD? I do, but I can't help failing elective courses.