When many college students get their curriculum, they would find that they do not only have the courses they are required to take, but also many courses on their own choices. With the limited time they have in universities, which kind of courses, compulsory ones or elective ones, should be increased in quantity？ What is your opinion？ Write an essay of about 400 words entitled: Should College Students Have More Compulsory Courses or Elective Courses？