A: motor dups
B: trishaws
C: motor bikes
举一反三
- One motor neuron and all of the muscle fibers it innervates is called the motor unit.
- Section C11. How can you get information if you’re going to buy a motor bike according to the speaker?To look in your 1 newspaper.12. Whatkind of motor bikes is advertised in the newspaper?Different kinds of motor bikes, both new and 2 of the motor bikes.13. Whatis one of the advantages of using the advertisementon the newspaper?It gives you the opportunity to have 3 of the motor bikes.14. What’s the possible problem if you buy a bike in this way?You might have to 4 until the motor bike is available.15. What’s another way to find a good motor bike according to the speaker?Another way is to look 5 .
- Motor bikes _________(禁止) driving in the highway. A: are prevented from B: are prohibited from C: are banned D: are forbidden by
- 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
内容
- 0
脑皮层运动区( ). A: cerebral motor cortex B: limbic motor cortex C: trabecular motor cortex D: cerebellar motor cortex
- 1
A single phase ac induction motor has two windings, one is a run winding and the other is called a start winding. Strat winding can only work for a very short time to avoid overheated. A _____________ switch is installed inside motor to disconnect the strat winding when the motor speed reached 75% RPM.
- 2
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
- 3
Playing a song on a piano is a type of _________() A: Discrete motor skills B: Serial skills C: Continuous motor skills
- 4
electric motor ______