????:1?????????????:???????????

2????????

3???????

4?????VX

5??????????

???12??????????????????????4????? ???????,????????????3???????“??????????”??????,??????“?????????”?

????????????????????????12???3?????????????????????,?,????????4?,??????????????????,?????????????????,??????????

??????,?????????????????

????????????4???,“?????,???????????????”????????????“????”?

??4?????????????????,?????????????,?????????

????,????

???????:?????????????????