A feedback is an input ____A.which governs the sta
A feedback is an input ____
A.which governs the state of a variable
B.which provides a visual and audible alarm
C.which indicates values of controlled variables
D.which measures the state of the controlled variable
请帮忙给出正确答案和分析,谢谢!
参考解答
正确答案:D
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