??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
??????????70???????????????????
??????????70???????????????????
??
????:
1???????:??????????
2????????
3???92?95?
4????????????
5???????
????
6
%
???:??