In addition to the national unification of the outline of the books for the final examination, there are no unified provisions for the test sets of textbooks and tutorials. Candidates should be careful when choosing teaching materials. When choosing tutorials and problem sets, we should see whether the book organization unit is a legal person, whether the writing group has a formal name, publishing houses and publishing units are best to choose regular units, and it is best to go to the large bookstores or the district and county examination offices when buying books to prevent the purchase of pirated and counterfeit books, and the selection of tutorials can not be greedy or cheap. Generally speaking, the textbooks for the starting point of senior high school are divided into People's Education Press, Higher Education Press, Renmin University Press and Adult Education Press, etc., while the textbooks for junior college promotion are published by China Radio and Television University Press, People's Education Press and Higher Education Press. It is understood that if you take a tutorial class, the starting point of the high school textbooks with the People's Education Press, the textbook of the higher education version of the electricity is more, self-study is best to use the high education version of the textbooks.