????:1???????9?????:??????

2???????

3???????

4???????

5????????

2023?????????,???????????,????????,??????????,??????,?????

???????,??????????????????“?????????”,??,????????????,????????,??????,?????????

?????,?????????C919?????,??????,???????,“?????”??????????????,????????,????????????

??????????,????????????????,???????????????????????,????????,“???????????????”?“???????”?????

????????,????????????????????????????,????,????????,??????……?????????,????????,???,?????????

????????,?????????,????????????????-???????????????“??????”????,?????????????,?????????,??????????!

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