In the process of continuing education and learning, video cameras should be used to collect students' information, so as to ensure that students learn by themselves, not others. Please get ready before class, so as not to affect your study. Online exams will also be recorded.

Safety officers are full-time safety production management personnel in construction enterprises, which refer to those engaged in safety production management in enterprises, including the person in charge of the enterprise safety production management organization and its staff and full-time safety production management personnel in the construction site.