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The feed work motor of modern CNC machine tools is generally used

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The feed work motor of modern CNC machine tools is generally used ( ).

A. Asynchronous motor

B. Servo motor

C. Stepper motor 

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B. Servo motor

The feed work motor of modern CNC machine tools generally adopts servo motors. So the answer to this question is B, servo motor.

Servo motor is a special motor specially used for position, speed and torque control, which can accurately stop and reverse in a very short time, suitable for frequent start and stop control.

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