??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
??:????????????,????????????
??:????????????,????????????
??
????:
1???????100?????:??????
2????????????
3??????????????
4?????
5?????
????
6
%
???:??