Which of the following statements is true?
A: Op-amps are high-gain dc amplifiers
B: Op-amps have extremely high input impedance.
C: Op-amps have extremely low output impedance.
D: All of the above
A: Op-amps are high-gain dc amplifiers
B: Op-amps have extremely high input impedance.
C: Op-amps have extremely low output impedance.
D: All of the above
举一反三
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- Japanese have extremely strong notions about , , ? Which of the following is not correct?（ ）
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