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题目内容
A certain restaurant offers each customer a combination dinner consisting of a choice of any entree, a choice of any beverage, and a choice of any dessert. The number of different combination dinners that are possible is 90. Which of the following CANNOT be the number of desserts available to be chosen for a combination dinner?
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· 相关考点
6.3.1 计数原理 1.6.3 倍数的定义与判定
6.3.1 计数原理
以上解析由 考满分老师提供。