?????? 16??C919“??????????????”??
???:1???18????,?12306??????,?????18?8???????,???1.75?????,????18???2???????????????1???,??
??:??????“??”??
??????????,????????,?“??”??“?????????????”??????,?“?????????????????”???,?????????????
???,????????????????????????????????????,????,??????,?????????????????????“???”??????800????????,??????????600????????
???????????????????????????????????????????????,??1200????????
????????????????????????????????,???????????????????????????“??”“??”??,???65%?
16????C919?????????
??,??16?????????C919??????,??C919??????
??????,??????10????????????????C919?,?????????????????????????????3????????C919??????,???????????????????????????????????????????????????????????5??,??????????????????400?????????3????C919????????????,?????????????????????????????????????4???????????
?,????C919??????????????????????????,??????????????,???????????????,?????
????:???