?? ???????????????
????:1?????:??????????
2?????300?3??vx
3????vx
4???????????
5????????
??????????(??????????):??,???2.77?????????????????(9??30????????????????????)????1750???????????????,???1566?????????????,??,????????????????????
?,???????????????????????16????????????24???,????????
???,????????????????????????????????????????????????????????????????????????????????????????????????????????????,?2023??62.8%?????????????????80%??????????
??140???????,?????(??) ????:?????