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题目材料：
The fact that no authenticated firepits predate the first known appearance of Homo sapiens some 200,000 years ago indicates that it was impossible to control the use of fire without a large brain such as Homo sapiens has. Since Homo sapiens did not exist 465,000 years ago, a 465,000-year-old deposit that has been found consisting of charcoal and burnt bones cannot, therefore, be evidence that firepits existed considerably earlier than 200,000 years ago.
以上解析由 考满分老师提供。
