?? ???????:????????????????
![](https://image.chezhanri.com/2019/0521/20190521095924733.jpg)
????:1???????????:?????????????
2???????
3?????????
4????????
5????????
?????????6??21?? ??21???,???????????????????,?,????????
?????????????????????,??????,??,????????
????????,??????????,?????
?????,???????????????,?????????????????????????,???????,????
?????,???????????????,???????????1800?????????;???????????????????????,?????????????1.2????????????????;?????,????????????1000?????????????(??????????????????2.15???????)??????
??,???????????????2???????????????????????????????????????????,??????????????????2023??????5.1%,??????2029???4500????????,??6%????(?????) ?????????:??????????