The difference between high number B and high number A
Generally speaking, the difference between a and b is:
1 and A are both more difficult and wider than B.
2.a is mainly biased towards the knowledge structure of science and engineering, and B is biased towards the calculation of economics.
The details are as follows: A has requirements, but B does not.
(1) Master the properties and graphs of basic elementary functions.
(2) Master two criteria for the existence of limit and use them to find the limit.
(3) Some simple physical quantities can be described by derivatives.
(4) Understand the concepts of curvature and radius of curvature and calculate them.
(5) Understand the dichotomy and tangent method for finding approximate solutions of equations.
(6) Understand the concepts of tangent plane and normal plane of curves and tangent plane and normal plane of surfaces, and work out their equations.
(7) Triple integration
(8) Integration of curves and surfaces
(9) Vector Algebra and Spatial Analytic Geometry
B requires that integration and differentiation involve economic application problems and difference equations.
Summary: Generally speaking, if you do well in the A exam, you will do well in the B exam. If you have any questions, you can compare the basic teaching requirements of A and B. Generally, there are science students taking the economics exam, so it is recommended that students majoring in liberal arts and economics review for the exam according to the difficulty of A. 。
The papers with high number B and high number B are independent propositions of colleges and universities, and the papers of different colleges and universities are very different. For example, high number B, Sun Yat-sen University takes probability theory and high number, while Henan University and Shaanxi Normal University only take high number; The difficulty is also very different. For example, the high number B of Shaanxi Normal University is almost indistinguishable.
As far as the Chinese Academy of Sciences is concerned, there are four kinds of papers in mathematics besides national papers: advanced mathematics A, advanced mathematics B, advanced mathematics A and advanced mathematics B; Among them, the difficulty of high number A is equal to high number A, the difficulty of high number B is equal to high number B, and the difficulty of high number A is much higher than that of high number B; High numbers A and B are propositions of Chinese Academy of Sciences, and high numbers A and B are propositions of Chinese University of Science and Technology.
As far as the high number B of the proposition of the Chinese University of Science and Technology is concerned, the difficulty is lower than two, and the outline can be found on the website of the Chinese University of Science and Technology. The reference value of real questions over the years is quite high, especially in recent years; There is little change in the types of questions between adjacent years, so it is not necessary to go beyond the outline when reviewing, but almost all the exams are required by the outline. The knowledge points required by the outline are clear and clear, and the number is small, so it is easy to get high marks.
As for the reason why the number of questions changed little between adjacent years of high number B, my humble opinion is as follows: high number B is an independent proposition of colleges and universities, and it is often colleges (departments) that undertake the task of writing questions. The questions can't be difficult, biased, strange or undifferentiated, especially for universities like China University of Science and Technology, its influence can't be underestimated; As far as a college is concerned, it is impossible to have a perfect evaluation mechanism like the national examination paper. To keep the difficulty of the test paper stable, it is more appropriate to adopt an effective way, that is, the test questions between adjacent years should not be changed too much to ensure that the test paper will not make mistakes, but should be changed a little to adjust the difficulty and improve the examination function of the test paper.