Mrs. Huang's book. Although the contents of A Book are flashy and some key contents will be circled, most of the unofficial support of this book is beyond the scope of topics that students don't need to know. On the other hand, Teacher Huang's Lecture helps students to better understand and master physics knowledge through the interpretation and explanation of high school physics textbooks. Most of this book is based on test sites, and most of its contents come from textbooks.