?? “??50??????”???
????:1?????spa:?????VX
2?????????
3?????
4???????????
5???????
??????11??????????????25? (??????????????????? ?)????50????,“???50??”24??????????????????????????????1500????????????
?????????????????????????????????????????????????????
???????????? ???????????????? ????? ?? ?????????????1500???? ??????? ?? ?????????? ???????????????? ???????? ?? ??????????????,?????????????????????????,???????????,??????????(???????????)
???????????:???????????????