A.Fifty percent higher than that of the non-students of the same age.B.One - quarter of that of the non-students of the same age.C.Half million.D.Less than that in the past.
A.Fifty percent higher than that of the non-students of the same age.
B.One - quarter of that of the non-students of the same age.
C.Half million.
D.Less than that in the past.