这种重资产模式在初期投入巨大，但在价格战进入白热化的阶段，它便构成了难以复制的成本护城河。
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Thomas Watters, managing director and sector lead for oil and gas at research firm S&P Global Ratings, says US firms have the ability to repair Venezuela's infrastructure, but it has to make economic sense.。im钱包官方下载对此有专业解读
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