When I chose International Business and Trade as my major, I don't know it is a board subject, it contain wide range of knowledge among business, for instance, Finance, Economy and Marketing. At last, it becomes a problem when i am going to graduate and find a job. Because most company is prefered professional who has specific knowledege in one area. So, according to my experience, I think university should require stutends to specialize in one subject.
 
The first and the most important is that the reason why students go to university is to learn professional knowledge instead of go to work immediately after graduate from high school. This is the biggist difference between university and high school, high school is the place for students to learn general knowlege.  Specialize in one subject students can  become a expert when they are given degrees, and it will help them to find a promising job.
 
Secondly, although students study only one subject, it does not mean them can not obtain a multi-dimensional knowledge by taking university's curriculum. I think the  curriculums arranged by university is more reasonable and professional, and emphasize on the comprehensive structure of the knowledge.
 
Admittedly, taking classes in many subjects enriches students' knowledge structure, and it may help them to think from various aspects when facing a problem. However, both the students’ energy and time are limited, achieving the large scale knowlege will make then miss the opportunity to go deep into thier major.
 
Therefore, I still hold my opinion that university should require stutends to specialize in one subject.