某人站在平面镜前2米处，此时人与像间的距离是_________米，若人远离平面镜，人在镜中像的大小将________。（填变大，变小或不变）
4；不变
简述需求侧管理实施效果业务工作标准？
The Class 3 and Class 1 runners both ran very slowly. ______ of them ran faster than the Class 4.[ ]
A.Either
B.Nobody
C.None
D.Neither
