Class 9 of Huiyuan in No.7 Middle School and Class 10 are the key classes. Huiyuan No.7 Middle School is a key class with quality education as the leading factor, focusing on individualized development and comprehensive quality improvement. Among them, 9 classes and 10 classes pay attention to teaching, so students can get more attention and guidance and recruit excellent students. Therefore, Class 9 and Class 10 of Huiyuan No.7 Middle School are key classes.