关于直流电动机和发电机的几种说法中，不正确的是（） Among several statements about DC motor and generator, the incorrect one is （)A．电动机是把机械能转化为电能的装置A motor is a device that converts mechanical energy into electrical energyB．电动机是利用通电线圈在磁场中转动的原理工作的The motor works on the principle that the current-carrying coil rotates in the magnetic fieldC．发电机是把机械能转化为电能的装置A generator is a device that converts mechanical energy into electrical energyD．发电机是利用电磁感应原理工作的 The generator works on the principle of electromagnetic induction
关于直流电动机和发电机的几种说法中，不正确的是（） Among several statements about DC motor and generator, the incorrect one is （)
A．电动机是把机械能转化为电能的装置A motor is a device that converts mechanical energy into electrical energy
B．电动机是利用通电线圈在磁场中转动的原理工作的The motor works on the principle that the current-carrying coil rotates in the magnetic field
C．发电机是把机械能转化为电能的装置A generator is a device that converts mechanical energy into electrical energy
D．发电机是利用电磁感应原理工作的 The generator works on the principle of electromagnetic induction
参考答案和解析
发电机是把电能转化为机械能的装置
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