The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway, which, over 2,500 miles long and extending from northern Ecuador through Peru to Southern Chile.
Q41: The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway, which, over 2,500 miles long and extending from northern Ecuador through Peru to Southern Chile.
Columbus was the Incan highway, which, over 2,500 miles long and extending Columbus was the Incan highway, over 2,500 miles in length, and extended Columbus, the Incan highway, which was over 2,500 miles in length and extended Columbus, the Incan highway, being over 2,500 miles in length, was extended Columbus, the Incan highway was over 2,500 miles long, extending 答案选E,
The greatest road system built in the Americas prior to the arrival of Christopher Columbus was the Incan highway,大家都说这个分句和Incan highway是同位语,可是我觉得 如果把他看成分句则应该是独立主格结构,即: Being the greatest road system......, the Incan highway......... 而B 选项则构成了一个完整的倒装结构,extended为过去式,仍表主动