When I take the self-study exam, I go to the bookstore to buy self-study books after each registration. I will first check whether there are self-study books for the subjects I signed up for. If there is, I will only buy exercise books (note that this kind of exercise book is one, not one like a test paper, so don't buy it wrong, or you will die) instead of buying self-taught books (this money is also saved). Then recite the answers to the short answer questions in this workbook (the answers to the short answer questions in this workbook should always be simplified before memorizing, so that only the words that can be removed are removed). There are more than 80 points in every exam.
If there is no exercise book to buy, then I have to buy books for self-study. Then I will draw the key points of each chapter according to my own feelings. If some test sites need to answer too many questions, I will try to simplify the answers. I had to answer more than 50 words, so I condensed it into 25 words. A 400-page self-study book, so I only need to read the 50-page framework and read it like this every day.