????:1???????????????:????3??100???????

2??????????

3???????200??vx????

4???????????

5?????????

11???????25????????,???????????????,??“????????”?????????????????????,??????5.38?????????????,????????1.18???????????,?????????????12.41%?????????????????13.84%,61%???????????????????,??“??”??300??????????10??????,????,????????????????????,???,????????????????????????????,???????????????????????????????????????????????????????????,????4800??????????????????,????????25%,???(?????? ??)

??:?????????????