?? 11??????????????50% ????????
????:1?????????:????????
2?????VX
3???95?????
4??????
5?????500?
??????????????11??30?????????? (????? ?????)??????????????????????30??,11?????????????????50%,?????0.2????????????????,?????????????6????????????????50%??,???
?????????????????,????,????????0.3??????????????0.9??;?;????????????????????????????????????????????????????????????????????
?????,11?????,???????????????50%,??????????,?,????60%???????,???????????;??52%??????,????;????????55%???????????,????????,??????????????????????
??,???????????????,???????????????,?????,?????????????????????????????????????????????,????11?????,??????,???(??) ?????:????