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?????????????????,???????????????,???1????:??????????????????????????40%,?????16%,????8.2%?
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?1????,“????????”???????20.9%,??15.5%;?,????????????????14.2%?“?????”(?????????)?????????54.4%?
???????????????????????????,????20?????
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?????????68?????????????
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2017???????????:??????
50???????????:?????????
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????????????54???
OPEC??2017?????????
??“?????”????????3519?
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??????????????????5?
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