?? ???????????????????
????:1?????????:???????????
2???????????
3????????????
4???????vx
5????????????
??11??????????????????????????25??? (????????????????????? ????)?????,???????????????“?25???????????”25?????????????«????»????
11????????????????????????????25???????????????????,“???????????????25????????????????????”???????????????? ????????????,?????,?????1000???,?????????????????????????25??????
??????????????????,????????????,???,????????????????,?,????????????“?”????,??“????”???
?,?????????70????500??????????????????????????30??????????????????????????,?????????,??????????????????????255??75????????????????????,????????“?????”“????????????????????????????????”?“???”?
?,?????????????
?????????????????????????11??27??????????????12?????????6???(??????????)
?????????:????????????????????