阅读程序: Sub Form_Click( ) a = 10: b = 15: c = 20: d = 25 Print a; Spc(5); b; Spc(7); c Print a; Space(8); b; Space(5); c Print c; Spc(1); + ; Spc(1); d; Print Spc(1); = ; Spc(1); c + d End Sub 运行上面的程序,单击窗体后,第三行输出结果是________。
A.■20■+■25■=■45■
B.20+25=45
C.10 15 20
D.20 25 45