Take online education of East China University of Science and Technology as an example. Generally speaking, students with a bachelor's degree or above who have passed the national education series can apply for exemption from public subjects, with a total reduction of 20 credits, equivalent to a tuition fee of about 2,400 yuan. For other exemption conditions, please refer to the Regulations on the Management of Students' Status in Online Education of East China University of Science and Technology. Of course, whether there is an exemption rule and how to implement it depends on the policies of various online education colleges.