??????
??????
??????
??????
???????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
???????? ??????
???????? ??????
??
????:
1?????????100?????:????????????
2??????
3???????vx
4?92?95???
5??????
????
6
%
???:??