This is the book "Synchronous Training in Jin Dian", which covers all subjects of grade 789 in junior high school, and there are some local special issues. I am a student in Hebei, and I will buy books on three subjects in Hebei every semester.
On the whole, this book is very practical. Although I bought a book, I got at least three books. Different subjects have different materials, such as Chinese, with a unique special volume. This workbook has special workbooks, handouts, monographs, papers, etc. From knowledge point explanation to synchronous practice of teaching materials, to comprehensive test, to knowledge point memory. It's worth buying anyway. Personally, I find it convenient to recite the manual.
I found the electronic version of Jin Dian's synchronous training. You can have a look. If you buy it, there are five Chinese books. If you buy the original, you will get five. This is very cost-effective and practical.