China University's large-scale open online course website: China University's large-scale open online course (massive open online course) _ National excellent course online learning platform. That is, massive open online courses, China, is a collection of open courses in major universities, with rich resources. There are authoritative professional course resources here. If you are a cross-examinee, you can search to see if your target college and major have courses. After reading it, it will be very helpful for professional courses. What needs to be emphasized in particular is that there is also a postgraduate entrance examination area, with various public courses such as mathematics, English and politics, as well as 408 computer, design postgraduate entrance examination and 22 specialized courses.