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.
-
Aas much as twice that expended in West Germany
分析该选项
-
Bas much as twice that of West Germany's expenditure
分析该选项
-
Cup to two times of West Germany's expenditure
分析该选项
-
Dup to two times what West Germans expended
分析该选项
-
Eup to double the West German expenditure
分析该选项
显示答案
正确答案: A