????:1??????????2021:?????????

2????????

3???????

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5???????

??????1??????????29?????????,????,??????????????(American Airlines)?AA5342???????????????????????,??Bombardier CRJ700????????,???????60??????????

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29??????,???????????(DCFD)???,????,?????????????????

??????,??PSA??,??????????????????????????H-60(???????????????????“???”????????)??(??????? ???) ???:?????????????