How is Niu Yonggang's physics?

Niu Yonggang is a physics teacher and works as a physics gatekeeper in the third-grade graduating class in Xicheng District, Beijing. His first error-prone training was aimed at the key breakthroughs of students' test sites, difficulties and error-prone points in each chapter. Judging from his teaching experience, he is a responsible and organized physics teacher who can help students improve their physics level.

Therefore, it can be considered that Niu Yonggang has a high level of physics teaching and is a trustworthy physics teacher.