标题: OG12-63 关于at least的小问题 [打印本页] 作者: ozymendias 时间: 2010-6-13 14:00 标题: OG12-63 关于at least的小问题 The yield of natural gas from Norway’s Troll gas ? eld 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. (A) 2005 and then to stabilize at six billion cubic feet a day, which will allow such an extraction rate at least for (B) 2005 and then to stabilize at six billion cubic feet a day, an extraction rate that will allow at least 答案选B，没什么问题 不过想问问大家，at least后面要不要加for然后再加时间啊？作者: sunluning0 时间: 2010-6-13 15:13
B,里面的allow是及物动词, allow 50years' production. 和at lease 无关作者: ozymendias 时间: 2010-6-13 15:22
