Investigation on knowledge-present situation inside and outside junior middle school mathematics textbooks.

Editor-in-Chief Xue Jinxing

Pricing: 29.8 yuan (it should be a knife)

My students and I have this book at hand. I suggest you have a look first and see if it is suitable for you before buying!

"Similarity, circle and some geometric knowledge are very important", which you think is good.

Qi Zhenhai, Henan