单项选择题

单击命令按钮时,下列程序代码的执行结果为 ( ) 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 Private Sub Commandl Click() Dim a As Integer, b As Integer, c As Integer a=2 :b=3 :c=4 Print SecProc(c, b, A) End Sub

A.21
B.19
C.17
D.34