1. Guo Kai University is a famous distance education school. Zhang Limei may want to improve his education and knowledge by studying in Guo Kai University.
2. Due to work or family reasons, Zhang Limei may not be able to attend the traditional full-time university courses, so he chose the Open University as a way of distance learning.
3. The tuition of 3.CDB University is relatively low, which may be more suitable for Zhang Limei's economic situation.
4. Zhang Limei may be interested in the courses and teaching methods of the National Open University, or it may be because the courses of the National Open University can be better combined with her career development.
In a word, there may be many reasons why Zhang Limei chose to study in China, and the specific reasons may only be clear to her.