????:1??????:????vx?

2?????????????

3???????150?????

4?????????

5??????????

???????????????????,??????12??????????18????????????????????????,???,???“???????????”??????????,????????????????????“????????????”,????

??“??”???4300????,???????????153??,???????????????????3000?????

???,????????????????,????40???????????23????????????????????????,??????20%????,?????100????????????150???????“21??”,????“????”??????????,???????????“????”??(?????????? ????? ??? ?? ????????????????)

?:???