1. In recent years, the Department of College Students of the Ministry of Education clearly emphasized in the Notice on Doing a Good Job in the Enrollment of Art Majors in Ordinary Colleges and Universities that candidates admitted according to the enrollment method of art majors may not be transferred to other majors after enrollment. So in principle, if you choose the art test, then you can only study in the art major.
2. Art students who want to know the knowledge of other majors can use their spare time to teach themselves. In college, there is a lot of free time, especially for art students (the courses of science and engineering majors are full and there is little free time). Therefore, art students can use this time to study their interested majors or courses. Generally, it is not strictly said in universities that non-major students can't come to this course, which means you can listen to the class you want to take secretly. In addition, you can also go to the library to read some related books, and the school library should go there often. In fact, university professors usually explain things in books when giving lectures.