单选题The control mode where the position of the final control element has a linear relationship with the position or value of the controller, variable is known as（）Atwo position controlBproportion controlCreset controlDrate control
单选题
The control mode where the position of the final control element has a linear relationship with the position or value of the controller, variable is known as（）
A
two position control
B
proportion control
C
reset control
D
rate control
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