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问答题

A set dominoes(多米诺) consists of rectangular (矩形的) tiles each carrying two numbers from 0 to 6 which represented by patterns of spots. Every possible pairing of numbers occurs just once including each number with itself.  How many dominoes are there in a set?

发布日期:2022-07-05

A set dominoes(多米诺) consists of rectangular (矩形的) ...

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此试题出现在

全国大学生英语竞赛(NECCS)

系列之一:A类

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