Tang Jiafeng 1800 problem is divided into two parts: customs clearance problem and improvement problem. Customs clearance questions are suitable for the basic stage, and promotion questions are done in the intensive stage.

Tang Jiafeng 1800 can be called the true question bank of postgraduate mathematics. From the basic questions at the beginning of preparing for the exam to the comprehensive questions at the later stage of strengthening, they are included. Every question of different types of knowledge points is not missed. Candidates can use a set of questions to solve the problem-solving ability and skills training of all test sites in the whole review process.