12.??假定有如下的Sub过程：Sub S（x As Single,y As Single）t = xx =t/y y =t Mod yEnd Sub在窗体上画一个命令按钮，然后编写如下事件过程：Private Sub Commandl_Click ( )Dim a As SingleDim b As Singlea =5b =4S a,b Print a,bEnd Sub程序运行后，单击命令按钮，输出结果为
A. 5 4
B. 1 1
C. 1.25 4
D. 1.25 1
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