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题库 / OG2015V-SC-69
The Anasazi settlements at Chaco Canyon were built on a spectacular scale, with more than 75 carefully engineered structures, of up to 600 rooms each, were connected by a complex regional system of roads.
scale, with more than 75 carefully engineered structures, of up to 600 rooms each, were
scale, with more than 75 carefully engineered structures, of up to 600 rooms each,
scale of more than 75 carefully engineered structures of up to 600 rooms, each that had been
scale of more than 75 carefully engineered structures of up to 600 rooms and with each
scale of more than 75 carefully engineered structures of up to 600 rooms, each had been
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首先根据句子结构排除AE, 出现两个谓语动词；C had been时态不对。
当时纠结B,D，感觉B each后面那个逗号怪怪的。。
理解题意一下，connected 应该是修饰前面的structures 而不是紧跟的each，"of up to 600 rooms each" 就是一个完整的修饰语。
根据with each能判断D错了，独立主格里面这两个只能单独使用
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