Wu Zhongxiang, a graduate of Xi Jiaotong University, stayed on as a teacher and was a professor of mathematics at Xi Jiaotong University. He has been engaged in the research and teaching of advanced mathematics for a long time, and participated in the compilation of teaching materials "Fundamentals of Engineering Mathematics Analysis" and "Fundamentals of Advanced Mathematics" by the Higher Education Society. After that, he was engaged in postgraduate counseling, and edited the textbook "Review Book" and "Advanced Mathematics Counseling Lectures".

Open Baidu search, directly search "Wende Learning Network", and find it as shown in the figure below. Click to enter official website, and enter the professional name in the search bar above, such as graduate economics. After the search, there will be a lot of information about postgraduate economics, and then you can find the online video you want to watch and click enter. Click "Online Reading" or "Online Watching" on the right to view the online course video of postgraduate entrance examination.