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电击（electric shock）
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考题
In order to cut down on the carbon emission, more people choose to travel＿．A．by electric car, bicycle or planeB．by private car, bicycle or busC．by bus, electric car or planeD．by bicycle, bus or electric car
考题
In an AC.synchronous motor electric propulsion plant,propeller speed is controlled by()
A.prime mover speedB.number of energized main motor polesC.propulsion generator field strengthD.electric coupling field strength
考题
It() as a shock to realize that I was not alone in the room.
A、cameB、appearedC、arrivedD、reached
考题
In order to cut down on the carbon emission，more people choose to travel______.A．by electric car，bicycle or planeB．by private car，bicycle or busC．by bus，electric car or planeD．by bicycle. bus or electric car
考题
After an accident the victim may go into shock and die. What should be done to help prevent shock?A.Slightly elevate the head and feetB.Keep the person awakeC.Keep the person lying down and at a comfortable temperatureD.Give the person a stimulant to increase blood flow
考题
If a person is unconscious from electric shock，you should first remove him from the electrical source and then ______.A.administer ammonia smelling saltsB.check for serious burns on the bodyC.determine if he is breathingD.massage vigorously to restore circulation
考题
It was well known that Thomas Edison（）the electric lamp.AinventedBdiscoveredCfoundDdeveloped
考题
这些舱盖通常是用电力或液压驱动的。（）A、These hatches are usually driven by electric or hydraulic power.B、These hatch covers are usually driven by electric or hydraulic power.C、These hatch covers are usually driven by electric.D、These hatch covers are usually driven by hydraulic power.
考题
为了避免震动，用低速控制钮减低移动舱盖的速度。（）A、To avoid shock, reduce the speed of moving hatch cover by inching control.B、To avoid shock, reduce the speed of moving hatch cover by control levers.C、To avoid shock, reduce the position of moving hatch cover by inching control.D、To avoid shock, reduce the course of moving hatch cover by control levers.
考题
操作完后，关掉电动机。（）A、After operation, start the electric motor.B、Before operation, stop the electric motor.C、Before operation, start the electric motor.D、After operation, stop the electric motor.
考题
单选题为了避免震动，用低速控制钮减低移动舱盖的速度。（）A
To avoid shock, reduce the speed of moving hatch cover by inching control.B
To avoid shock, reduce the speed of moving hatch cover by control levers.C
To avoid shock, reduce the position of moving hatch cover by inching control.D
To avoid shock, reduce the course of moving hatch cover by control levers.
考题
单选题When there is a fire in a large electric motor, normally the very FIRST step is to （）A
secure the electric supplyB
ventilate area to remove smokeC
start the fire pump and lead out hoseD
apply foam
考题
单选题_______I fixed the plug properly, I still got an electric shock.A
BecauseB
HoweverC
AlthoughD
When
考题
单选题After an accident the victim may go into shock and die. What should be done to help prevent shock?（）A
Slightly elevate the head and feetB
Keep the person awakeC
Keep the person lying down and at a comfortable temperatureD
Give the person a stimulant to increase blood flow
考题
单选题If a person is unconscious from electric shock，you should first remove him from the electrical source and then（）.A
administer ammonia smelling saltsB
check for serious burns on the bodyC
determine if he is breathingD
massage vigorously to restore circulation
考题
单选题这些舱盖通常是用电力或液压驱动的。（）A
These hatches are usually driven by electric or hydraulic power.B
These hatch covers are usually driven by electric or hydraulic power.C
These hatch covers are usually driven by electric.D
These hatch covers are usually driven by hydraulic power.
考题
单选题What type of electric motor is most commonly used on board ship?（）A
non-synchronous electric motorB
synchronous electric motorC
fully enclosed electric motorD
watertight electric motor
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