) For the economic entrance exam, candidates should not stick to the outline too much, because the relevant knowledge points may also be tested on the topic of Tongyan No.3 in combination with the scope of the outline, because there is an intersection between the two, the proposition of Tongyan No.3 is mature, and the questions of the economic entrance exam will refer to No.3. A typical career planning theory should consider two aspects: its own situation and external environment. Self-circumstances include interests, abilities and values, and external circumstances include industry and job requirements. Students should have a better understanding of these two aspects through various career explorations, and choose the right direction among many choices such as postgraduate entrance examination, employment and going abroad. Assuming that students choose their own postgraduate entrance examination, they can also refer to the above ideas when choosing the economic joint entrance examination or the general postgraduate study. Relatively speaking, are you interested in mathematics, logic and writing of the joint entrance examination for economics, or do you think the content of the general research three is more interesting? Do you think you are good at the economic entrance examination, which is similar to the civil service examination, but not deep, or you are good at the general third year of research, which needs in-depth understanding and comprehensive application? What are your future career goals? What are the requirements for mathematics? Is it a basic concept, a basic calculation or a complex mathematical model for quantitative analysis? The answers to these questions will help you make a reasonable choice.