???????????????1????23?? ???????????,??(?)23????????????????????????,????????
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?????1???15???????????,???,???4???
????:??????????????
???!??????????:???????
???????????:?15.60%??????
???:?????????????????
??????????????:??7????
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??????:??????????????
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????????:????????????
?????4?1?????????9????
???????????:?15.60%??????
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????2??????????2???
??:?????????????????
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??:?????????????????
?????????5.5%??????1????
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??WTI????50???????
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??:???????????9???
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