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ds【语篇解读】本篇文章为记叙文。主要讲述了美国的土著居民印第安人的房屋结构和建房特点，展示了美国当地人的居住文化。72答案A。【解析】细节理解题。根据第二段第二句“Thewigwamswereofwago
topshapewithstraightsidesa
de
ds”可知，选项A符合题意。73答案B。【解析】细节理解题。根据第五段中“ThePaw
eer