??: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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