????:1????????:??sn??

2?????

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4???????????

5???????????

?11?????23???????????????????? (???)11??23????????????,?????????????????????????????????????????????????????????,?????????????????????,????12???????????????????????80%??

????????????,??(???“????”)??????????????????????10???????????????,????????40%????????

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“?????????,????????????????????C909?,???160??,????200?????,????????????????,?????????????”???????????

????????,????????????????????????5???????????,??????????????80?????????????,??????????????????,?????????????????????,?????,??????????????????????

?,??????????????????C909?A320?????????B737NG???????????????????????

??,????????????????,???????????????????????,?????,???????C909?A320?B737NG???????????6?12???,???,???80%??(????)

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