?? ???????????????
????:1???????:???????
2??????????
3??????????
4????????
5?????????
?????????1?????7?????????????? (? ?????????????????????????????????????????????)1??7?????,????6.8??????????????????????,???????????????,??
?????,?????,?,???,???????????????,?,??
?????,?10??????????1?????????,10???????????20???1?,20?50??????????4?????????????????????4???????1?7????????????10???43???????????,????????????????????
??????????????????????????????????,????????????????????,?????????(??) ??????????????????????:??