???????????????

????:????????????:????????????

???1???7???? (? ?)1?????7?,????????6.8????????,??????????????????,????

??????????,???????,???????,???????????,????????????????,???????????,??????

?,????????????????10???????????1?,10?20??????????????????1?,20?????????????????????50?????????4????????????????????????4???????????????1??7?10??43????????????,??????????????????????????????????????????????????

???????????,?????????????????????????????????,???????????(?) ???:???