Attached is a copy of "All-round Practice of Primary School Textbooks"

There are many analyses in the whole solution and many examples in the whole practice. There are also small promotion topics in various regions!

The difficulty of the topic is moderate, the typesetting is good, and the number of words can't be less (I hate small print, otherwise I can't write a lot of words, and the paper is of good quality. The key is that you are willing to do and watch. It is still useful when it is critical. Give it a final sprint. You won't regret it. Ask again if you don't understand ~ it means that you haven't graduated from primary school for a few years.

Hope to adopt ~ ~