First of all. According to official website of Zhengzhou Education Bureau, the top three are experimental classes of foreign language junior middle school in Zhengdong New District, experimental classes of middle school affiliated to Zheng Da University and 73 experimental classes. The experimental class of junior high school in Zhengdong New District Foreign Language School is a key class, which is set up to cultivate students' professional ability in a specific subject or field. These courses will provide more in-depth and professional teaching content.