????:?????
???????3????8????????
OPEC??2017?????????
?????????68?????????????
??????????????8???
???100?????????????0.01?
??-????????0-0????????
??????????????????5?
????:2016????300??????????…
????????????????????
??????????8.15???????
PPI??5????????????
???????100??????????1500
??:???????????????????
A???“???”:????????????13??
????????????????????
???????????????????«??»
????:?????“???”????
???????????????
????:????????????????
??????????????????????
????????????470?:???3?1?
??????????????00????2??
??:??????????????????
????1?????????????????
???:?????????????????????