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

2??????????

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

4??????

5??????

?9????1?? (??? ?????)“????????????????????C919?50???!”9??????1??,MU9188“??-?????????????”??,???????????,C919????2023???????????5??????????????28??,????????1??,????3700???????????????????50?????????

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

?????C919??50??????

??????????2022?12???????????9?????C919???,????“??”:??????????????????-???……

??????,????C919???????7????,???????????????????????????????????5????“???????”?

????,????????????7?C919??,??????????????“????????????????????????????”????????“???????????????????????”????“??”?,????????????????,?????7?8???????,??C919?1145???,????16???,???86%,????????C919“???????????”,????“??”??(????)

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