Venezuela's oil is also of poorer quality than its Saudi equivalent. Its sour, heavy crude is difficult to extract and refine, while its high sulphur content makes it corrosive to pipelines. A resurgence of Venezuela's industry could pose problems for Canada, which produces similarly viscous oil and exports much of it to the US, but analysts reckon the risk is minor.
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“母子诀别、兄弟同心……这些故事情节十分动人，舞台设计也很震撼。”格里深受触动，“中国人浴血奋战的艰辛历程，让我理解了中国为什么能取得今天的成就。”
但報告作者聖經公會堅持其發現，並表示已和YouGov核對。