?9?21?? (????? ?)?9?21?18??51?4.5??,?????

????????????,9???21??18??51???????(???24.30????????,?????121.60???)?4.5???,?20?????????????

?,??200??5??4???343?????,????2024?4?????????3????7.3???

????,??????????????????????????????????????????,??????,??,???????????(?) ???????????????????:?? ??“?????30?50????”

?? ???????4.5????????? ???

????:1??????30?50????:?????????

2???????

3?????????????

4???2019????

5????????

?9?21?? (????? ?)?9?21?18??51?4.5??,?????

????????????,9???21??18??51???????(???24.30????????,?????121.60???)?4.5???,?20?????????????

?,??200??5??4???343?????,????2024?4?????????3????7.3???

????,??????????????????????????????????????????,??????,??,???????????(?) ???????????????????:??