????:1?????????:xc8??1xc

2?????????

3?????????

4??????

5??????

9?????25???,?,?????“?”?3????,??????????????????40??????????????,“?????”???????????????????????,“???”?????????????,???????????????????????“???????”,????????????

????????????????,??75???,???“?????”?????????“?????”,????????????????,????“???”????“???”????????????“?????????”??????????????????????“??”??????????????????????????“????????????”?,“???”????????,“??????????”????,“??????”?????????;????,??C919??;????“?????????????”???????????????“??????”??????????????????????????????……????????????“??????0????1”???????,????????“?????????????????”?

1956??????????,????????????“????”?????????????,????????????,???????????????????????????????????????????,???????“??????????”??“??????”,??“????”,??,??????……???????????,??????????,?????????????????????2023???????,????????400?????2024??????????,?????11????????????,?????????????????30?????,????26??????,?????

??????,??????????????????????75??,???,???????75??,?????????????????,????????????????,?????????,????????????,?????5????????????????,????????????600??????,????????????,??2012??????324.7??????2022??????????????????635.4???????????,????????,??

“????????,??”?????????2013?2023??????????????,??????8.7%?10.3%,????,?????,?????????????????“?????????????”???????????????????“??”,2023????????????,“????”????1.06?,?,??29.9%,????????????????,???????“???????????”?

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