??????
??????
??????
?????
??????
??????
??????
??????
??????
??????
??????
???????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
CBA???(???)?????????
CBA???(???)?????????
??
????:
1??????????:95?98?
2????????
3?????98?????
4?????
5??????100????
????
6
%
???:??