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[单选题]
在反相比例运算电路中,正确的是( )
A
u+=u-=0,共模输入信号uic=0b.u+=u-=0,共模输入信号uic=uic.u+=u-=ui,共模输入信号uic=uid.u+=u-=ui,共模输入信号uic=0
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A
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