?????? 16??C919“??”??????????????

????:???????95?:????????????

??????????????????????: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?????????????????,?????????????,?????,????????

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