标题: 各位大神,请教一道陈向东的快速突破高分数学里的 [打印本页] 作者: CHASEAFTTERGMAT 时间: 2016-4-16 10:48 标题: 各位大神,请教一道陈向东的快速突破高分数学里的 题目是:seven basketball teams play in a league against each other.At the end of the season,how many differemt arrangements are there for the top 3 teams in the rankings?A.6 B.42 C.210 D.5040 E50450