5 knots. According to official website information of Netease Cloud Classroom, Wu Zhongxiang starts classes at 8: 00 every Monday to Friday, and speaks 1 1 point. The class lasts for 3 hours, and he has a rest on Saturday and Sunday. Therefore, in 23 years, Wu Zhongxiang's intensive curriculum arrangement is five classes a week. Wu Zhongxiang, male, graduated from Xi Jiaotong University and is currently a professor at Xi Jiaotong University. He has been engaged in the research and teaching of advanced mathematics for a long time. Representative works include the textbook Analysis of Engineering Mathematics and Basis of Advanced Mathematics by Higher Education Society and the tutorial textbook for advanced mathematics for postgraduate entrance examination.