?? ??????????????????????
![](https://image.chezhanri.com/2019/0613/20190613110322940.jpg)
????:1????????:??????
2?????????
3?2023????QT???
4?????
5?????
??????????6??????????28?????????????? ?????????????????:??????????????????????,??,?????????(PPP)????????????
????,???????????????????????????PPP???,??????????????????????????????????,?????????,??,????????????????,???????????,????????????????????????????,????????????;????,?????????????????????????;??,???????;???????????????,??????,??????????;??????????????;???????????????????????????????PPP??????,???
???,????????????????????«?????????»«??»«???????????»???????????,????????????????,??????????;??????,????;?????????????????????????????,?????? ?????:??????????