标题: 问as 和 while的一道GWD题目 [打印本页] 作者: GraceZhou 时间: 2010-7-26 14:39 标题: 问as 和 while的一道GWD题目 Q17: The steel industry has changed radically over the last two decades, as large, integrated companies such as Bethlehem Steel once conducted operations from mining at one end of the process to shipping at the other have greatly downsized, or in some cases shut down altogether.
as large, integrated companies such as Bethlehem Steel as large, integrated companies, such as Bethlehem Steel, that with large, integrated companies, such as Bethlehem Steel, that while large, integrated companies, such as Bethlehem Steel, that and large, integrated companies such as Bethlehem Steel