????:?????
??“???????”
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
???????????????? ??????
???????????????? ??????
??
????:
1????????:????????
2????????????
3?????????
4???????????
5????????
????:?????
????
6
%
???:??