???????????????

????:???????????:??????

??7?6????????????? (??????????? ?????????????????????)6????,??200???,?????????????????????

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??????,?????????A321???,????????,??,???????5???????????????8?????????????????,????????????????????????????????1200?????????????????????????

???,???????????????????????????,?5????6??????????

??,???????,??????8??????12????,??,?20???????,??2000????????(??????)

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