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2016081908:18    ?-?

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??816?????????????15?2016??????25?

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??10???????20062020??2006??????20062020??????1.0?????i??1????2.0?

???2.0?????2020???????N????????

??????????????15??????

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??12??????2020??????????20152020??????2.1%2.5%??1.42?2.5????10.3%??????

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?i????????????????????????2020??????????????????????

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