???:??????
???:?????????????
OPEC??2017?????????
????2016????2146??????????…
?????????????????????
19???????????????????
???100?????????????0.01?
?!????????????
???????????:??????????
?????????68?????????????
??????????????????
????:?????“???”????
??????????????????????????
??“?????”????????3519?
?????????????????
??????????????????????
??????????????????????
??????????????5???3???
???:????????????????
PPI??5????????????
????:????????????????
??????????????????5?
??????Indy500????F1????
??:4?27????????
??:?????5-0????????????
????:????????????????