???,?????????,??300??????,??“???”???????????,??????25000????,???????????????????????????????????,????12??,????????3???(??)
??:??????
??:??????????????????????
?????????????????????
??:???????????????
???????????????61???(?)
??????????????????5?
??-????????????????????
??????:????????????
OPEC??2017?????????
???????????????61???(?)
????????????????????
???????:????????????????(?…
???100?????????????0.01?
???????????????
????????!???:?????????
??????:????????????
????1?????????????????
?????????????????????
??:??????????????????
???????:??????????????
???????100??????????1500
PPI??5????????????
????????2????????????
????:????????????!
???:?????????????
??2??????2?1600?????2?