If several identical stages of amplifiers， each having the exact same upper and lower cutoff frequencies， are connected in cascade， then the bandwidth of the resulting amplifier will（）.

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題目：If several identical stages of amplifiers， each having the exact same upper and lower cutoff frequencies， are connected in cascade， then the bandwidth of the resulting amplifier will（）.

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A.increase

B.remain unchanged

C.decrease

D.be equal to the sum of all the individual bandwidths

正確答案：decrease

關鍵字：智慧樹

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