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发表于 2025-3-28 16:22:57
North Sea Oil and the World Economy,mic vertical scale) shows the growth of world oil output from 1860 to 1970. After very large percentage rates of increase in the early years the average annual compound rate of increase was near to 7 per cent from 1900 to 1970, implying an output doubling time of approximately ten years.
尾随
发表于 2025-3-28 20:44:08
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