【单选题】Capacitors are widely used in electronic circuits for blocking( ) while allowing alternating current to pass.
【单选题】If you are an electrician, you will know the difference between an alternating and a direct ()
【判断题】程序中的命令为:int a[6]= {0};此时数组中的所有元素的值都为0.
【单选题】在窗体中添加一个命令按钮,名称为Command1,然后编写如下程序:
A.
ivate Sub Command1_Click( )
G.
运行后,单击命令按钮,则在窗体上显示的内容是:
【判断题】建筑平面图中的墙体可以采用矩形命令绘制。