??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??
???????:???????????????,??
???????:???????????????,??
??
????:
1?????VX:?????????
2??????????
3???????100?
4??????95?98??
5?????300
????
6
%
???:??