Three Families
题目
Three Families
Three families live in a building.Each family has only one child.
One of the three children is a girl.Her name is Xiao Hui.The other two are boys.They are Xiao Peng and Xiao Ming.The children’s fathers are Mr.Wang ,Mr.Zhang and Mr.Chen.The children’s mothers are Liu Ying,Li Ping and Hao Fang.Now we know:Mr.Wang’s son and Li Ping ’s son are on the boy’s basketball team.Xiao Ming isn’t Mr.Zhang’s son.Mr.Chen isn’t Hao Fang’s husband.Now,can you tell me the family numbers of each family?
快速判断:
1.Mr.Chen is Xiao Peng’s father.( )
2.Li Ping is Xiao Hui’s mother.( )
3.They have two sons and one daughter.( )
4.Xiao Ming is Liu Ying’s son.( )
5.Xiao Peng and Xiao Ming like to play basketball.( )
答案
1.x
2.x
3.x
4.x
5.对
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
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