The dissertation "xxxxxxx" completed by XXX, a master student majoring in xxxx in XXXX College, has certain theoretical significance and application value. On the basis of a comprehensive overview of xxxxxxx, combined with the current situation of xxxx in China, this paper creatively puts forward its own ideas and viewpoints. The experimental design of this paper is reasonable, the method is appropriate, the writing idea of the paper is clear, the logic is rigorous, the information is informative, the viewpoint is clear, the language is fluent, the argument is strong and the format is correct. The experimental results are analyzed for the first time, and XXXXXXXXX and its mechanism are preliminarily studied, which lays the foundation for further study of XXXXXXXXX and has potential application value. The paper shows that the author has a solid basic theory and systematic professional knowledge in this discipline, and has the ability to engage in scientific research in this discipline. Xxx thesis has reached the level of master's degree thesis, so it is suggested that the master's degree thesis should be defended and the master's degree of XXX xx should be awarded.