In or der to e nsur e normal tea chi ng or der, pr otecti ng stude nts ' healt hy growt h, ensuri ng that nati onal (pr operty) is not lost, to pr event or mi nimize the occurre nce of safety accide nts, foll ow the "prevent, re scue ea ch other, e nsure safety and reduce l osses" pri nci ple, a ccording t o the l ocal conditi ons, make t he manageme nt system. 1, the principal i s the responsi bi