?:??????
??????????8.15???????
??????????????5???3???
?????????:????????????
???????????????
??????????????????????
OPEC??2017?????????
??:???????????????????
??:??????????????????
??????????????????????
???100?????????????0.01?
????????????200???????
???????10????3-2????????
???:?????????????
???????????????
??????????????????
???????10????3-2????????
??????????????“??????”
??:?????5-0????????????
???????????????
PPI??5????????????
????????????470?:???3?1?
??2??????2?1600?????2?
??????????????00????2??
???????????:??????????
??:??????????????????????