最新提问
我的动态
登录后查看动态
题目内容双击单词支持查询和收藏哦~
An artist will arrange 5 identical plastic apples in wooden bowls-one made of maple, one of oak, and one of pine. How many different arrangements are possible such that each bowl will contain at least one apple?
A显示答案
· 相关考点
6.3.8 其他特殊排列组合技巧
6.3.8 其他特殊排列组合技巧
以上解析由 考满分老师提供。