• 2022-06-09
    减法运算电路如图所示,其输出电压的表达式为( )。[img=215x113]18038f6a1b2d11d.jpg[/img]
    A: [img=160x46]18038f6a2555bb3.jpg[/img]
    B: [img=150x39]18038f6a3094fc7.jpg[/img]
    C: [img=203x41]18038f6a3b5b412.jpg[/img]
    D: [img=132x40]18038f6a46d616c.jpg[/img]