????????2????????5???? ?????2??????4????????????5???
???,??2??????????4???,?????????
????,?????????????????????,??????????????????????,??????????????????????,?,??????????????“??????????”“?”,??????????????
?????????,?????????????“???????”,?????????????,???????????(???) ??????????????????:??
?????????????????????
??????????:????????
???????????????????«??»
?????????:????????????
???????100??????????1500
????1???????????????
????????:??1??8000?
???????????????????
?????????????????????
PPI??5????????????
???????????:??????????
???????100??????????1500
????????224.6???????10????…
OPEC??2017?????????
??:4?27????????
???:?????????????????????
????????????????????
A???“???”:????????????13??
?????????????????
?????????????????????
2017???????????:??????
??2???????????????????
????2016????2146??????????…
??2???????????????????
??3?????????0.2%