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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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主要搞清楚谁是插入语，这里应该是of up to 600 rooms each是插入语，去掉插入语，句子变成：
The Anasazi settlements at Chaco Canyon were built on a spectacular scale, with more than 75 carefully engineered structures were connected by a complex regional system of roads.
with...是独立主格，修饰补充a spectacular scale。这个规模有超过75个被一个复杂的道路系统相连的建筑，
插入语of...是修饰的这个structure，每个建筑有超过600个房间
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