原文：By the end of the 1980s, output per person in manufacturing was half as much again as it had been at the start of the decade. 译文：到二十世纪八十年代末，制造业的人均产量是八十年代初的一半。
【正确答案】：改译: 到二十世纪八十年代末，制造业的人均产量比八十年代初增长了50%。
【题目解析】：half as much again的意思是“增长了一半”。例如Spending on health is half as much again as it was in 1998.卫生保健方面的开销比1998年增长了一半。
