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　　其??(qi)二??(er)??，懲??(cheng)罰??(fa)性??(xing)關??(guan)稅??(shui)政??(zheng)策??(ce)將??(jiang)導??(dao)致??(zhi)全??(quan)球??(qiu)貿??(mao)易??(yi)成??(cheng)本??(ben)上?(shang)升??(sheng)??，迫??(po)使??(shi)石?(shi)油??(you)貿??(mao)易??(yi)改??(gai)道??(dao)??，進?(jin)一??(yi)步??(bu)加?(jia)劇??(ju)了??(le)國??(guo)際??(ji)油??(you)價??(jia)的??(de)不?(bu)確??(que)定??(ding)性??(xing)??。??美??(mei)國??(guo)對??(dui)進??(jin)口??(kou)鋼??(gang)鐵??(tie)和??(he)鋁??(lv)加??(jia)征??(zheng)關??(guan)稅??(shui)??，增??(zeng)加??(jia)國??(guo)內??(nei)石??(shi)油??(you)開??(kai)采?(cai)和??(he)運??(yun)輸??(shu)的??(de)成??(cheng)本??(ben)??，間??(jian)接??(jie)推??(tui)高??(gao)油??(you)價??(jia)??。同??(tong)時??(shi)??，貿??(mao)易??(yi)摩??(mo)擦??(ca)導??(dao)致??(zhi)的??(de)全??(quan)球??(qiu)經??(jing)濟??(ji)放?(fang)緩?(huan)預??(yu)期??(qi)??，又??(you)對??(dui)油??(you)價??(jia)形??(xing)成??(cheng)了?(le)下??(xia)行??(xing)壓??(ya)力??(li)??。這??(zhe)種??(zhong)復??(fu)雜??(za)的??(de)相??(xiang)互??(hu)作?(zuo)用??(yong)使??(shi)得??(de)國??(guo)際??(ji)油??(you)價??(jia)的??(de)波??(bo)動??(dong)更??(geng)加??(jia)難??(nan)以??(yi)預?(yu)測??(ce)??。　　近??(jin)期??(qi)??，國??(guo)際??(ji)原??(yuan)油??(you)市??(shi)場??(chang)在??(zai)美??(mei)國??(guo)政??(zheng)府?(fu)加??(jia)征??(zheng)關??(guan)稅??(shui)政?(zheng)策??(ce)的??(de)沖??(chong)擊??(ji)下??(xia)??，呈??(cheng)現(xiàn)??(xian)出??(chu)前??(qian)所??(suo)未??(wei)有??(you)的??(de)波?(bo)動??(dong)態(tài)??(tai)勢??(shi)?。?作?(zuo)為??(wei)全??(quan)球??(qiu)最??(zui)大??(da)的??(de)原??(yuan)油??(you)消??(xiao)費??(fei)國??(guo)和??(he)重??(zhong)要??(yao)能??(neng)源??(yuan)生??(sheng)產??(chan)國??(guo)??，美??(mei)國??(guo)保??(bao)護??(hu)主??(zhu)義??(yi)政??(zheng)策??(ce)不??(bu)僅??(jin)將??(jiang)改??(gai)變??(bian)全??(quan)球??(qiu)能??(neng)源??(yuan)貿??(mao)易??(yi)格?(ge)局?(ju)??，也??(ye)對??(dui)世??(shi)界??(jie)石??(shi)油??(you)市??(shi)場??(chang)產??(chan)生??(sheng)深?(shen)遠??(yuan)影??(ying)響??(xiang)?。市??(shi)場??(chang)人??(ren)士??(shi)認??(ren)為??(wei)??，當??(dang)前??(qian)石??(shi)油??(you)市??(shi)場??(chang)觀??(guan)望??(wang)氣??(qi)氛??(fen)深??(shen)厚??(hou)??，市??(shi)場??(chang)參??(can)與?(yu)者??(zhe)面??(mian)對??(dui)諸??(zhu)多??(duo)重??(zhong)大??(da)不?(bu)確??(que)定??(ding)因??(yin)素??(su)止??(zhi)步??(bu)不??(bu)前??(qian)??，國??(guo)際??(ji)油??(you)價??(jia)在??(zai)重??(zhong)壓??(ya)之??(zhi)下??(xia)表??(biao)現(xiàn)??(xian)疲??(pi)軟??(ruan)?。標??(biao)普??(pu)全?(quan)球??(qiu)公??(gong)司??(si)在??(zai)國??(guo)際??(ji)能??(neng)源??(yuan)行??(xing)業(yè)??(ye)高??(gao)端??(duan)會??(hui)議??(yi)“劍??(jian)橋??(qiao)能??(neng)源??(yuan)周??(zhou)”期??(qi)間??(jian)發(fā)??(fa)布??(bu)的??(de)一??(yi)份??(fen)展??(zhan)望??(wang)報??(bao)告??(gao)表??(biao)示??(shi)??，“能??(neng)源??(yuan)行??(xing)業(yè)??(ye)正??(zheng)處??(chu)于??(yu)十?(shi)字?(zi)路??(lu)口??(kou)”??，既??(ji)充??(chong)滿??(man)機??(ji)遇??(yu)又??(you)面??(mian)臨??(lin)巨??(ju)大??(da)的??(de)不??(bu)可??(ke)預??(yu)測??(ce)性??(xing)?。。