????:1???????:????VX

2?????????

3???????????

4???????

5???288

??????????????2??????????????????5???? ??“???????????????????”5??,?3?????4???4?????7.3?,?????9????

????????????,??“?”?

?????????????????????,??(???????????S)??????,???,??,???5???????????????????????

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

??“?????”??,?????????????,1??21?2????????????3???142????,????????????25??????2??2???,?????65????????46.3%,?????68.6%?

??,???????,?????,??????(???) ?????????????:???