???????????????

????:??????:????VX

2???????????10????,?????????,?????(??????????)???????,8?????????,?????????,???,??????????????????????

???,?,????????????????3???????????????,????????????????700?????????????????????????????????????????????,????????98.2%?

???(????????????)?????????8??????????,????70???52?,????????20??????

???????,?????????2????????????20?????????????????1????15?????????,???500????,???????????(????? ???)

????:???