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

2?????????

3?????????

4???????????

5???????sn

????????????6???21??? (?????? ???)?,????????17??,??????????????????????21????????

??????????????????????????????“?????????”???

??,“??????????”??152??????,?????

??,2019????,??????20??????????,??????????8460????????????65?,?????????6?????????,???

????????,??????????????“????????”,????????,???????“?”;???????,???“???”?????????,?????????????17??,???27????????????

???????,??????????????,????

???,2023??????????????,???????11.2%???2?????????,??????????13.6%????????????????87???

??????????,???,????????,?????????,?????????,???????????????????“?????”??????????????“??”?(?) ???????:???