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题目内容
In an election, 2 candidate, 3 candidates and 4 candidates campaign for A position, B position and C position, respectively. If every voter must choose one candidate for each position, how many different ways can a voter fill the voting ballot?
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· 相关考点
6.3.1 计数原理
6.3.1 计数原理
以上解析由 考满分老师提供。