问题详情

单击命令按钮时，下列程序的执行结果是 Private Sub Command1_Click Dim a As Integer, b As Integer, c As Integer a=3 b=4 c=5 Print SecProc(c, b, A． End Sub Function FirProc(x As Integer, y As Integer, z As Integer． FirProc=2x+y+3z End Function Function SecProc(x As Integer, y As Integer, z As Integer． SecProc=FirProc(z, x, y．+x End Function
A.20
B.22
C.28
D.30 请帮忙给出正确答案和分析，谢谢！