??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
??????
?????????
??????
??????
??????
??????
??????
??
????????????? “????”??????
????????????? “????”??????
??
????:
1?????????j:???????????
2??????????
3?????????????
4????????vx
5???????
????
6
%
???:??