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87. What is the meaning of this sign?
A. Reducing speed 40m ahead
B. Minimum speed is 40km/hr
C. Axle weight limit is 40 tons
D. Maximum speed limit is 40km/hr
Answer：D
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科目四试题
- What is the meaning of this sign?
- What is the meaning of this sign?
- When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him to a place where air is fresh so that he will not continue to be poisoned.
- What is the meaning of this sign?
- When removing a wounded person suffering spinal fracture, the rescuer should never help the wounded person to walk. He may be carried away with a soft stretcher.
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- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
- When rescuing a person sustaining full-body burns the rescue personnel may spray cool water to his body to put out the fire.
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- What is the meaning of this sign?
- When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.
- What is the meaning of this sign?
- When a wounded person is unable to get off the vehicle by himself, he should be removed from the vehicle so as to avoid a secondary injury.
- When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him/her to a place with fresh air so that he/she will not continue to be poisoned.