?? ????2.77????????????????? ???
![](https://image.chezhanri.com/2019/1106/4c1fa11420afdb12e6f90573ea53a5ca.png)
????:1??????????:???????
2???????????
3?????????
4?????2020
5???????
?????????7??????????????5???????????? ?????????????????????,7???5????????????,??????????????????????????????????
???????????????????????????????:2002????2023???,??????????????????????????,???????????????????,?????????????????????,?????????????,?,???????????????????????????????????????????????,???????,?2.77???????????????????????
?,???????,??,???????,?????????,??????????????????
??????20?????? ????:????????