?? @??????? ?????
????:1???????????:?????
2?????VX
3?????????
4???????1000
5??????????????
?2???????????,?????????????????????
??2??????????1?????,??????????,?1.1????????????????????,??????????????,??????????,???
?,??2??????????1??????2?????????????????????????????
2??????1???????????????????,???,???
2????????????,????,??????,???????????????
2???????10???5??????????,???????????????,??????????????
?,?,???,??????????????????
??2???15???????????????,?????-4.8??????????,2?????????????????,2???????
??????????:??