If body fluid is insufficient and it cannot moisturize or nourish, there will be symptoms like dry mouth, dry throat, dry nose, dry lips, dry eyes, scanty and yellowish urine and dry stool.

The ( ) stepping motor is used widely in the industry. A: variable reluctance stepping motor B: hybird stepping motor C: permanent magnet stepping motor D: reluctance stepping motor

The type of stepping motor widely used in industry is A: reactive B: permanent manget motor C: hybird motor D: variable reluctance motor

脑皮层运动区( ). A: cerebral motor cortex B: limbic motor cortex C: trabecular motor cortex D: cerebellar motor cortex

dry-motor A: 干马达 B: 干冷转 C: 湿马达 D: 我不知道

One motor neuron and all of the muscle fibers it innervates is called the motor unit.

Cyclos are also called__________. A: motor dups B: trishaws C: motor bikes

Motor unit is A: a motor neuron B: a group of motor neurons with same function C: a group of muscle fiber that involved in execution of a special movement. D: a bundle of muscle fibers E: a alpha motor neuron and the innervated muscle fibers

electric motor ______

The motor housing is ______ to the stand. A: