The difference between 504a and 504c in Luzhong.

1. Class types: 504a and 504c are two different class types in Luzhong Experimental Middle School. Class 504a is an ordinary class, and class 504c is a special class.

2. Enrollment target: The enrollment target of Class 504a is ordinary students, with no additional special requirements; The enrollment target of Class 504c is students who have special skills or are good at a certain skill, and they need to be selected and assessed.