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题目材料：
Archaeological research on hunter-gatherers, particularly in environments with low or fluctuating resource abundance, has long focused on the economic and technological dimensions of food use and procurement. The ethnographic record,however, indicates that social and cultural considerations also critically informed Indigenous peoples' subsistence strategies in such environments. The demise of the Dorset Paleo-Inuit people of Newfoundland in the late first millennium C.E, for instance, seems attributable to their cultural commitment to a diet dominated by harp seal and their reluctance to change that when environmental conditions reduced seal availability. The fact that this people' s contemporaries on the island, the predecessors of the Beothuk, were able to persevere with a subsistence economy that emphasized caribou and other foods tells us that the Dorset had othe subsistence options.
以上解析由 考满分老师提供。
