I signed up for a course in Orientalism, and I just landed. I have to say, it's really cool to listen to Orientalism! ! There is nothing to say about the teacher's strength. The chairman of the civilian meeting is at his home. The skills of professional ability and the focus of public knowledge are in place, and professional courses are not empty. As soon as I heard it, I felt that all the classes that skipped classes in college were made up here, and there were more dry goods, so I had to recite them. Xiao Bai, who has weak learning ability, is very suitable for this position. But online mainly depends on listening to the teacher's lectures, and optics does not practice fake skills, so we should practice more real questions while learning the answering skills.