??????????????????????????1???????30? ?,??????????????1??29?????,????3?2????????????????????
??«????????»30?????????????,??29??????????????,???????????????????
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3?29???????????
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45????????????????????
??????????????500????80%?
70???????856?:??????????-?
?????????????644?
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??19????????????????????
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????2016???48.6???????4.3%
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????2016???54?PB??????????…
????2016???54?PB??????????…
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??????560?????????2000??