标题: 比较题求助 [打印本页] 作者: vichain 时间: 2011-8-6 10:11 标题: 比较题求助 American productivity is declining in relation to Europe's; the energy expended per unit of production in the United States is................ as much as twice that expended in West Germany as much as twice that of West Germany's expenditure 为什么选第一个？作者: Tobelogical 时间: 2011-8-6 10:29
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