Generally speaking, there is really little selectivity in mathematics. Sometimes the national tax can report the job requirements of the year, and most of the time it is not limited to majors. The situation is different every year. You can refer to last year's job list. In fact, the score of any position will not be too bad. The most important thing now is to understand that there is no job to take the exam. Three points depend on hard work and seven points on luck. It is better to report well than to do well in the exam. This is a true portrayal of the national examination. But if you are a math major, you will have an advantage in the quantitative relationship in the written test.