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63. What is the meaning of this sign?
A. Bump road
B. Low-lying road
C. High outburst road
D. Hump bridge
Answer：B
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2025年摩托车科目四英文版题库共345题，你可以免费查看前50题，完整版题库请添加微信购买：
The English version of the 2025 motorcycle subject 4 question bank has a total of 345 questions. You can view the top 50 questions for free. Please add WeChat to purchase the complete version of the question bank.
科目四试题
- When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.
- When approaching another vehicle at night, why should the driver alternate between high-and-low-beam at a distance more than 150 meters?
- How should a motor vehicle follow the other vehicle In front when driving on a road covered with ice and snow?
- Which of the following method is correct to rescue an unconscious person?
- What is the meaning of this sign?
- What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?
- When driving in thick or extremely thick fog, what should the driver do due to the low visibility in such weather?
- When two vehicles approach each other on a foggy day, what is the best method of safe driving?
- When following other vehicles on a foggy day, what should the driver do?
- 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.
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.
- How should lamps be used when motor vehicle drivers pass through a two-way tunnel?
- The first-aid measure to rescue a poisoned person is to _______.
- When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
- When carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
- When discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.