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标题: OG12-63 关于at least的小问题 [打印本页]

作者: dypig1234 时间: 2011-11-12 07:05 标题: OG12-63 关于at least的小问题

The yield of natural gas from Norway’s Troll gas ﬁ 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: cherryserena 时间: 2011-11-13 06:51

B,里面的allow是及物动词, allow 50years' production. 和at lease

无关

作者: dypig1234 时间: 2011-11-15 06:35

谢谢回复，不过还不是很懂。。

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