A.3 和3 B.4 和4 C.3 和4 D.4 和3
A.i *j = 9 B.1 * 9 = 9 C.i * j =i *j D. 9
A.Dim x As Integer B.Dim x As Integer,y As Single C.Var x,y:Integer D.Dim x As Integer,y As Integer