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In order to ensure normal teaching orde r, pr otecting students ' healthy growt h, ensuri ng that nati onal (pr operty) is not lost, t o preve nt or minimize t he occurrence of safety accide nts, follow the "preve nt, rescue ea ch other, ensure safety and reduce l osses" principl e, accor ding to t he local conditions, make the ma nagement system. 1, t he pri nci pal is t he responsibility of scho