题目
there are four people in a room.for every two people are connected if:-they are friends,or
-a third person is friends both of them,or -they have different friends who are friends of each other.
what is probability that every pair of people in this room is connected?
A)18/32 B)20/32 C)22/32 D)19/32
-a third person is friends both of them,or -they have different friends who are friends of each other.
what is probability that every pair of people in this room is connected?
A)18/32 B)20/32 C)22/32 D)19/32
提问时间：2021-01-05
答案
just take a guess...
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
奥巴马演讲不用看稿子.为什么中国领导演讲要看?
想找英语初三上学期的首字母填空练习……
英语翻译
最新试题
热门考点