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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，这一点在旺商聊官方下载中也有详细论述
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雷军在微博发文称，马年开工第一天，他与高管团队向员工发放开工红包，并正式公布这一全新配色，称其将为小米汽车在马年带来「开门红」。