She is working hard all day long,which will surely________ her success in her future work.
平行四边形ABCD的对角线AC与BD相交于O,则( )
已知x,y的取值如下表所示:
x
2
3
4
y
6
5
如果y与x呈线性相关,且线性回归方程为y∧=bx+132,则b=( )