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• 1??:?????????????
• 2????????????????????
• 3??:???????????????????
• 4???100?????????????0.01?
• 5????????????54???
• 6????:?????????????1???
• 7????2016????2146??????????…
• 8??????????????5???3???
• 9??????????:????????
• 10??????????????????
• 11??????????404????(?)
• 12????:?????????????1???
• 13??3?????????0.2%
• 14????:????????????????
• 15OPEC??2017?????????
• 16????????2????????????
• 17????1???????????????
• 18??:???3???1???1????????
• 19?????????????????????
• 20???????????????????????