An inverting amplifier with +11 V supply voltages normally has a sinusoidal output of 10 VPP. When checking the circuit with an oscilloscope, you find that the output is 0 V. Which of the following could account for this problem?
A.
R 1 is open.
B.
V 1 = 0
C.
R is shorted by a solder bridge.
D.
All of the above
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【单选题】— Has James finished his report on his Enquiry Learning yet? — I'm not sure. She _____ on it last week. [ ]