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At a college graduation ceremony, there will be 5 speakers seated in a row of 5 seats on a stage. One of the speakers is the president of the college. In how many of the 120 possible seating arrangements for the 5 speakers is the president seated in the third seat in the row?
_____seating arrangements
_____seating arrangements
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· 相关考点
6.3.4 排列
6.3.4 排列
以上解析由 考满分老师提供。
