?? C919?????????
????:1???????????:??????
2????????
3?????V
4????????98
5?????????
1???17?????,????????12??8???????,??????????????147??????CZ3380????,????C919??????????“????”,???????“?????????”??????,?????C919??7??,?C919??1?????????C919?????????????164???,????,2.25?48.26?????,???(?? ??????? ??? ?)
?????????????:??????????