Mathematical analysis and advanced algebra are preparatory specialized courses in the department of mathematics. Mathematical analysis is a book published by Nanjing University, and advanced algebra is a book published by Peking University. The second interview is to choose three written tests from eight courses, including real variable function, functional analysis, point set topology, ordinary differential, operational research, numerical analysis, introduction to algebra and so on. Interview is some basic concepts.
By the way, there are many applications for applied mathematics in the Department of Mathematics of Nantah, so it is recommended not to apply. Other directions are quite easy to test, and around 340 is relatively stable, as long as you are not too stupid in the written interview and retest.