???? ????? ??????? ????????? ???? ?????? ???????? ??????????????????????????????? ??????????????????????????????????? ???????????????????? ?????????????????????????????????????? ?????????????????????? ???????????????????????????? ?????????????????????xxx?????? ???????????????????? ??????

????????????????????? ????????????????????????????????????????????? ????????????????????. ??????????????? ??????????????????????????? The roles and tasks of workers whatsoever degrees within the organization to have a joint obligation. In management, basic safety and decline control and cut do