??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
CBA???(?????????)???
CBA???(?????????)???
??
????:
1????????:????????
2???????100
3????????
4??????????
5??????????????
????
6
%
???:??