????:1???????????:??????vx

2??????????

3??????????

4???????

5???????VX

“???”??????????2????????????6???????????10????,???????????????????60???,??,??

?????30?????????????????,?,?????????????,??????

??????????????????,???????????????????????“??”??????????????????????“???????”?????????,???????????????????,?????????????????,????,????????????(??????????????? ??? ??????????? ???? ????)

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