???: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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