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

2?????????

3????????

4???????2023

5????????

1?????17??????,?????????12???8??????????,????????147????CZ3380?????????????,?????????????C919??“???”,???“?”?????,??????C919???????7??,????C919?1???C919??164??????????????,??????,2.25???????48.26???????,?????(???? ????????? ?? ??)

??:???????