Among them, the textbook of tax law ⅰ has been changed greatly, and the degree of change in the whole book has reached 30%; The textbook of Tax Law II has changed a little over the previous year, and the whole book has changed by 35%. The textbook "Tax-related Service Practice" has changed a little over the previous year, and the whole book has changed by 40%. The textbook "Laws Related to Tax-related Services" has been greatly changed, and the degree of change in the whole book has reached 45%; The change degree of the textbook Finance and Accounting is less than that of the previous year, and the change degree of the whole book is about 10%.