Because the university is to apply theory to practice, and doing experiments is the best practical method. Moreover, experiments can generally arouse students' enthusiasm for learning more than theoretical courses.

However, it is a very painful thing to write an experimental report after the experiment. Usually, the experimental report is ok, but when I meet the internship report and write 40-50 pages, I want to cry, and the teacher doesn't allow me to print it. It's really painful

I want to cry when writing the experimental report. Writing a report every day is worse than writing homework in high school. Hey.