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.
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.
A.as large, integrated companies such as Bethlehem Steel
B.as large, integrated companies, such as Bethlehem Steel, that
C.with large, integrated companies, such as Bethlehem Steel, that
D.while large, integrated companies, such as Bethlehem Steel, that
E.and large, integrated companies such as Bethlehem Steel
请问 A为什么不对呢?我觉得A的话应该可以省略先行词的吧,相当于once conducted operations from mining at one end of the process to shipping at the other 做后置定语。我不理解为什么一定要选B。请各位大牛指教呀。谢谢~~