People's Education Edition has many contents, concepts and details. However, this is more difficult for teachers to complete. Besides, if it is completed, the progress may be so fast. That will cause students not to understand.

But the Beijing Normal University edition is different. His content is not much, but the key and important things are still there. In other words, the basic content is there, and there is no detailed concept. So relatively speaking. Everyone is a little relaxed.