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.

C certificate of safety officer is also called C certificate of three types of personnel in construction enterprises and C certificate of three types of personnel. Safety officer C certificate is a full-time safety production management personnel of construction enterprises, which refers to the personnel engaged in safety production management in enterprises, including the person in charge of the enterprise safety production management organization and its staff and the full-time safety production management personnel at the construction site. If the three types of personnel pass the examination, the construction department will issue a certificate of safety production examination, and the certificate of the three types of personnel is common throughout the country. In China, certificates are used in all walks of life. Security officer C certificate is a kind of qualification certificate, which proves that you have the ability to work in this industry and belongs to the national vocational and technical skill appraisal certificate.

According to the National Law on Work Safety, safety officers should do a good job in daily supervision, inspection, spot check, training, rectification, prevention, dust removal and cleaning, security inspection, fire prevention, theft prevention, explosion prevention and poisoning prevention, equipment maintenance and management, safety tips, etc. in stations, automobiles, supermarkets, hospitals, schools, enterprises, meeting places, entrances and exits. As a team leader and operator, and hold relevant certificates. The production enterprises, business units or storage units of dangerous chemicals and highly toxic substances shall set up safety hazard prevention and control institutions, be equipped with safety officers, conduct inspections on time, and make records of spot check, handover and rectification. Where there are more than 100 employees in other production and business units other than those specified in the preceding paragraph, a safety production management organization shall be set up, and a part-time production team shall be equipped to manage safety cadres; If the number of employees is less than 100, full-time or part-time security personnel shall be provided.