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

2?????VX

3?????

4?????????

5???????vx

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

??,????????????????????????????11????,???????5.8%??????????????????11???????????????,??80%??????????60%????,??,?????8.7%??????????????29.3%?????????,????????????21????????????????30%??????????

????????????,11??,????50.3%,?????,????????,????????????,?????????????

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