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.
AI, Exclusive, orbital computers, Space，更多细节参见91视频
。关于这个话题，搜狗输入法2026提供了深入分析
Restore to a checkpoint，推荐阅读WPS官方版本下载获取更多信息
Vegetarians have substantially lower risk of five types of cancer
