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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
简单题！错！错选d！！
考察：
并列；未画线部分并列
中： to increase and then to stabilize
没有好好对比bd；d明显不是并列，前面是todo，后面变成了then doing，doing，明显不对
多体会未画线部分，多对比选项才成选出最🈶️
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