Here, I recommend several exam books: a set of universal questions or universal questions or compass questions or "three big books" handouts, a set of "real questions" (as far as exams are concerned, the real questions must be carefully studied and the one recommended by Teacher Zhang Nengbao) and a set of "key laws" (which can be bought together with the special lecture notes).
In addition, it is suggested to ask questions in the professional examination forum. People on Baidu are all veterans who took the exam a long time ago and may not keep up with the development of the situation. As far as exams are concerned, our suggestions may not hit the point.