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2?9?????????,???? ????????? ?????????
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2?????9??,???? ????? ??
2?9?,??? ????????? ??
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3??????PMI????0.5?????????…
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62%?????????????
A380??????????497???
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?????????35.6????????????
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????9.6????????????50%??
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????:???????5%????????5.5%…
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