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题库 / Prep2008E2-SC-208
The yield of natural gas from Norway's Troll gas field is expected to increase annually until the year 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for 50 years' production.
2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for
2005 and then to stabilize at six billion cubic feet a day, an extraction rate that will allow at least
2005 and then stabilizing at six billion cubic feet a day, with such an extraction rate at the least allowing
2005, then stabilizing at six billion cubic feet a day, allowing such an extraction rate for at least
2005, then stabilizing at six billion cubic feet a day, which will allow such an extraction rate for at least
extraction
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