????:1???????:??????

2???sn??

3???????

4??????????

5??????????????

?,??“?”,???,????????????????17.7??

?,??,?????????2023???,?????????????????1000??????????????,?????????????????250?,?????100???;2024????,????1510????,????420???????250????,?????45?????,?????“?”???

(???????? ? ?????????????? ???)

?????????:????