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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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试题答案：
A
答案解释：
在反相比例运算电路中，u+=u-=0，共模输入信号uic=0。
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