A roll of Chinese is good. A volume of Chinese China, the first set of new papers that all the papers of the whole semester are compiled into a book, one volume is in hand, the bottom-up of the whole semester, the units and special projects, including the final, real questions all over the country. I worked hard on the design of the topic. It not only pays attention to the gradual progress of mathematics knowledge, but also makes up for the shortage of teaching materials, and also does some work of repairing bridges and roads, which is very practical. Pay great attention to hierarchy, let students choose and leave room for students. It is very different from the previous exercises. The final real thesis is very practical, and it is a rare good thesis in recent years. After doing it, it will be of great help to the student union.