22. A certain company assigns employees to offices in such a way that some of the offices can be empty and more than one employee can be assigned to an office. In how many ways can the company assign 3 employees to 2 different offices?
我的理解是这样的:in such a way that some of the offices can be empty and more than one employee can be assigned to an office 办公室可以是空的, 一个办公室里可以有多于一个人 那么就是说办公室是0个人或者是两个人或者以上. 言外之意就是不能有只有一个人的情况 那只能是一空一三,两种情况. 我怀疑题目有问题,因为有语法错误more than on employees这里应该加s, 原题可能不是我这个意思
以下是引用kallyli在2006-7-24 16:55:00的发言: 我的理解是这样的:in such a way that some of the offices can be empty and more than one employee can be assigned to an office 办公室可以是空的, 一个办公室里可以有多于一个人 那么就是说办公室是0个人或者是两个人或者以上. 言外之意就是不能有只有一个人的情况 那只能是一空一三,两种情况. 我怀疑题目有问题,因为有语法错误more than on employees这里应该加s, 原题可能不是我这个意思