简答题
GRE
2012-10-16
There are 12 people in a wedding party．How many different ways can five of them be arranged from left to right for a photograph?
参考答案
暂无
答案解析
D．There are l2 people who can be chosen to stand in the first place. After this person is chosen，there are 11 choices as to who stands in the second spot．Next，there are 9，and then 8 ways to fill each of the remaining three spots．The total number of ways is l2×11×10×9×8：95，040.
