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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，更多细节参见同城约会
第二章 居民委员会的组成和职责
Джо Байден. Фото: Стрингер / РИА Новости。谷歌浏览器【最新下载地址】对此有专业解读
backend systems. Ultimately, as so often happens, it may have been IBM's success