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??:????????????????
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OPEC??2017?????????
??2??????2?1600?????2?
???????:????????????????(?…
????:????????????????
????????????????????
????????????470?:???3?1?
2017???????????:??????
????????224.6???????10????…
????:2016????300??????????…
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??????????????00????2??
????1???????????????
???100?????????????0.01?
???????10????3-2????????
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