Not the last link. Defense is only a part of the promotion process, and other steps are also very important, such as meeting the application conditions and completing the assessment process. Therefore, the defense of primary and secondary school teachers in Zhengzhou is not the last step. The green channel for the promotion of primary and secondary school teachers in Zhengzhou adopts the remote processing process, which mainly includes: filling in application materials, online registration, online training, online assessment, online defense and so on.