What exercise books do students use in Xunyang, Ankang, Shaanxi?

Green exercise book for preventing myopia. Students in Xunyang, Ankang, Shaanxi Province carried out the printing standard of green myopia prevention textbooks, and the relevant departments such as the Provincial Department of Education selected and reviewed the textbooks that met the requirements of text selection. After expert evaluation, the price is determined as 2 yuan. 16, the price is 3.50 yuan. Two kinds of green myopia prevention textbooks are recognized as patented products for students to use.