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