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【单选题】

一通用型运放的开环增益为1000000,其最低的转折频率为5Hz。若将该运放组成一反相放大电路,并使它的增益为-100,其闭环带宽为 。‍

A.
50kHz ‍
B.
5MHz
C.
400000Hz
D.
200000Hz
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参考答案:
举一反三

【单选题】同相比例运算电路与反相比例运算电路的Rif相比较,则(  )

A.
反相比例运算电路的Rif
B.
同相比例运算电路的Rif
C.
两者Rif一样大
D.
两者Rif不可比较

【单选题】Section BDirections: There are 2 passages in this section.Each passage is followed by some questions or unfinished statements.For each of them there are four choices marked A, B, C and D.You should de...

A.
happiness has no connection with money
B.
men are happier than women in most countries
C.
women's happiness mainly comes from economic factors
D.
social relationship means more than money to women's happiness
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【单选题】同相比例运算电路与反相比例运算电路的Rif相比较,则(  )
A.
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B.
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D.
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【单选题】朱砂安神丸的组成药物中不含
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【单选题】Section BDirections: There are 2 passages in this section.Each passage is followed by some questions or unfinished statements.For each of them there are four choices marked A, B, C and D.You should de...
A.
happiness has no connection with money
B.
men are happier than women in most countries
C.
women's happiness mainly comes from economic factors
D.
social relationship means more than money to women's happiness
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