题目解析:
C 这句话看上去很复杂,其实是一个加了很多修饰成分的类比符合句,用so来连接类比(A是XXX样的,B也是XXX样的)。去掉不非主要成分,原句和缩略为:Like the stone of Roman wall, which were held by design and cement, so the roman realm were bonded into an entiy by controls. 这样缩略完以后就非常好选了,正确答案就是C。A中的inspire纯属瞎编乱造;B中的让步也是原句没有的,错;D前半句非常正确,但从句说powerful laws缩小了原文的control,不对。