??????: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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