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