?? ?????????:???25%???

????:1?????:????????????
2?????VX
3??????
4???????
5?????wx
????2???19????? ???????,?18???,?,???25%????????,???4?????????????2???

??,??,?????,?,“??????4?2???????,??????????25%?????”
???,?4????2??????????,?,?,????????????
2?14????????????????????,??,??????4?????2????????????
????:???????