?? ??????????????? ?????????
????:1???????????:???????vx
2???????
3???????
4?????????????
5?????vx
???,??????12?18???,??????????,????“????????????????????????”??????????,???????????????????????????????“??????”,???
????????????“??”???4300??????????,????153????????????????,??????????3000?????
???????????,?,????????40???23?????????,???????????20%???????,????100?????????150??????????????“21????????????????”,???“?”???,??????????“?????”???(???????????????????? ?? ??? ??? ??????????)
??:??????????????????