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51. What is the meaning of this sign?
A. Embankment road
B. Steep uphill road
C. Continuous up slopes
D. Steep downhill road
Answer：D
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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 motor vehicle encounters an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
- What should the driver do to follow other motor vehicles on a mountain road?
- 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.
- How will the adhesive force of road change when speed increases on a damp and slippery road?
- What is the meaning of this sign?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
- What is the meaning of this sign?
- What kind of harmful effect will be brought about by continuously using the foot brake on a long downhill road?
- 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 driving on road sections where safe sight distance is affected, such as the top of a ramp, what should drivers do to ensure safety?
- What is the meaning of this sign?
- Once inflammable gas causes a fire disaster, it should be put out with water in good time.
- 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.
- What is the meaning of this sign?
- Which of the following is a bad habit when changing lanes?