概率不好，请大家帮忙解释一下 答案是24 还有就是第二句话意思不是很理解 At a dinner party, five people are to be seated around a circular table. Two seating arrangements are considered different only when the positions of the people are different relative to each other. what is the total number of different possible seating arrangements for the group?
Two seating arrangements are considered different only when the positions of the people are different relative to each other. 两个人中间的相对位置不一样才看作是两种排列（如果是同样的排列绕着桌子转圈的话，算同一种排列）
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发表于 2010-8-9 18:08:43
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