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  3. The five rings on the flag are Blue, Black, Red, Yellow and Green. In how many different ways could the rings have been arrang

The five rings on the flag are Blue, Black, Red, Yellow and Green. In how many different ways could the rings have been arrang

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问题 The five rings on the flag are Blue, Black, Red, Yellow and Green.

In how many different ways could the rings have been arranged in colour order?
选项 A、120
B、100
C、80
D、60
答案A
解析 有五种颜色，依据排列组合可以得出数学算式：5×4×3×2×1=120。  
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本试题收录于： B类竞赛（英语专业本科专科）题库大学生英语竞赛（NECCS）分类
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B类竞赛（英语专业本科专科）

大学生英语竞赛（NECCS）

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