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【简答题】
接续上一题。 从上面的两个计算例子可以看出,的开环增益越大,采用上述近似计算带来的误差就越(大,小)。而上述近似计算的公式里只有两个电阻值,这说明当的开环增益很(大,小)时,用组成的上述放大电路的放大倍数将只取决于这两个电阻的阻值。
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A.
These all last few
B.
these last few all
C.
all these last few
D.
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A.
these all last few
B.
these last few all
C.
all these last few
D.
these last all few
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A.
can’t
B.
mustn’t
C.
shouldn’t
D.
needn’t
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