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单选题
An operational amplifier, as used in todays consoles, has a calculated gain of 5This means that when the input changes （）
A
5 volts, the output changes 10 volts
B
10 volts, the output changes 5 volts
C
2 volts, the output changes 10 volts
D
10 volts, the output changes 2 volts
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单选题An operational amplifier, as used in todays consoles, may have a calculated gain of 5√This means that as the input changes by （）A
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5 volts, the output changes 10 voltsD
10 volts, the output changes 5 volts
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