In or der to e nsur e normal tea chi ng or der, prote cting st ude nts ' healt hy growt h, ensuri ng that nati onal (pr operty) is not l ost, to prevent or mi nimize the occurr ence of safety accide nts, foll ow the " prevent, rescue each ot her, e nsure safety and reduce l osses" princi ple, a ccording t o the l ocal conditi ons, make t he manageme nt system. 1, t he pri nci pal is t he responsi