1, the content is different: the textbook version B is relatively difficult, and the exercises are challenging and of high quality. For example, the textbook selection of version B inequality is obviously more difficult than that of version A. In contrast, the content of version A is relatively simple and the exercises are considered to be boring.
2. The knowledge structure is different: for example, the optional compulsory parts of PEP A and PEP B are divided into three volumes, but version A talks about series and derivatives in the second volume, and version B talks about series and derivatives in the third volume.
3. Different teaching orientation: Textbook B is actually the basic textbook for competition students, which is suitable for students who are more confident in their own abilities and can make the foundation more solid. Version A pays more attention to the process of knowledge generation under the guidance of mathematical literacy, especially to the rigor of knowledge.