????,????5?30??,????????????,???????????????????,???“?????????????????????”?
2015????,????????????????“????????????????”????????????????“????”,??,????????????????????
????,??????“???”??????,?????,???????????“?????”????????????????????,???,??????????????????,??????,????????????????????
??? ???? ????? ??? ????
?:??????????????
19???????????????????
??:????????????????
??:?????5-0????????????
PPI??5????????????
????:?????????????????????…
OPEC??2017?????????
??????????404????(?)
??????????????????6000??
????????????54???
??-????????????????????
??????????????00????2??
?????????????????????
??????????????????????
???????????????:??????????
??????:???????????????
?!????????????
??????????????00????2??
?????????:????????????
??:4?27????????
???????3????8????????
?????????????????
???????100??????????1500
????????????????????
???????:????????????????(?…
???:?????????????