The starting point of junior college is undergraduate course, which is an upgraded version of online education.

Refers to an adult college with a bachelor's degree. According to the enrollment plan issued by the state, college graduates from national education series institutions of higher learning or those who have obtained college graduation qualifications through self-study examinations for higher education are enrolled and admitted through the national unified examination for adult institutions of higher learning.

Undergraduate course refers to an undergraduate course that starts directly from the starting point of high school without going through the junior college stage.

The difference between "undergraduate" and "undergraduate" in online education diploma is that the former is an undergraduate with a college degree, while the latter is an undergraduate without a college degree.