If it is the basic stage, our teacher Yang speaks it very well. He used to be a teacher in the proposition group of the joint examination, so he is particularly familiar with the examination outline. From the perspective of proposition, he will explain knowledge points and talk about the application of knowledge points. Do it again, and the following questions will be coherent to the knowledge point, and you will know how to answer correctly. Moreover, the lecture was to the point, and all the points were difficult. Help us avoid many detours and give Mr. Yang a compliment. I went there last year.