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??:??????????????“??”?
????,???????,????“???????????????”????“??????????”??????????????????????,????“??”????,???
?????????????????,????????????????????,????,???????????????,???????????????????????????????????“??”???????800??????????,???????????????????????600?????????
???????????????????????????????????????????,??????????????????????1200??????????
???????????????????,?????????????????“???????????”“???????”??,????????????????65%?
16????C919???
???,???16?????????????C919????????,??????C919??????????
??????,?10?????C919????,???????????????????3???????????????C919??????,???????????????????????????????????5????,??400????3??C919???????,?????????????????????????4??????
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?????:???????????????????????
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