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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 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.
- The drivers, loaders and supercargoes responsible for dangerous chemicals transportation should all full understand the chemical characteristics, potential risks, features of the packaging containers and emergency measures for any unexpected accidents.
- Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
- Which of the following is an inflammable solid material?
- When carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
- How to ensure safe driving at night?
- What is the meaning of this sign?
- What influence does smoking have upon driving?
- When a wounded person suffering bone fracture in the thigh, shank and spine, it is necessary to keep the fracture in position and refrain to move the wounded person.
- When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
- What is the meaning of this sign?
- Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
- When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
- 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 the tire pressure is too low, what will happen if the tire changes its shape in waves and increases in temperature due to fast movement?
- What is the meaning of this sign?