?? ???4.7??????? ??????????
????:1?????:??????
2?????????
3????????50?
4???????
5????????
????????????????11??????????22?????? (??????????? ?)???????11???22?20??????40??4.7????????????,??????
???,11?22???20??????40?(???23.21???,???120.23??)???????????4.7?,?15??
?????????????,????????????,??????????????
?????,?,???,???????
?,?200??????????5????????????4???321??,???2024?4???????????????3????7.3??,????168?????(??????????????) ??????:???