have excavated a 5,000-year-old wooden hull that is the earliest surviving example of a "built" boat--in other words, a boat constructed out of planks fitted together--and that thus represents a major advance, in terms of boat-building technology, over the dugout logs and reed vessels of more ancient vintage.
(A) together--and that thus represents
(B) together--and this has represented
(C) together, and it represents
(D) together that was representing
(E) together to represent
答案是A，各位大牛们，我实在不知道怎么判断这个题目是A的。。。
作者: 毛毛carina 时间: 2011-2-7 12:53
这里是用破折号来置入插入语 in other words, a boat constructed out of planks fitted together
主句是Archaeologists in Egypt have excavated a 5,000-year-old wooden hull