单项选择题From the jobs which Jack had applied for, we can see that he would like to work in the field of A、 Entertainment B、 Fashion C、 Business D、 Politics
单项选择题设随机变量，则下面答案正确的是（ ）. A、 T服从t(n-1)分布. B、T服从t(n)分布. C、T服从正态分布N(0,1). D、T服从F(1,n)分布.
