1. Suntech is a vocational education institution in China. Founded in March 2003, it is dedicated to improving students' competitiveness in the workplace. The academic qualifications of self-taught books are available on the national recognition letter website, which is very accurate.

2. Wancai College was founded in 20021,and the training experience and teaching quality of self-taught books are relatively weak, which is not as accurate as Suntech College.