??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
???2000?????????????? ????????
???2000?????????????? ????????
??
????:
1?????????:?????
2??????120??????
3????????????
4????????
5?????
????
6
%
???:??