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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 carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
- When a motor vehicle temporarily stops in fog, which lamp should be turned on?
- When a motor vehicle encounters a burning phenomenon, it should leave the vehicle quickly so as not to cause injury or asphyxia to the respiratory tract.
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
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- What should the driver do to follow other motor vehicles on a mountain road?
- What influence does smoking have upon driving?
- 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.
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- What is the main impact of foggy weather on safe driving?
- What is the meaning of this sign?
- What is the meaning of this sign?
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- When a wounded person is under the wheel or cargo, the wrong method is to pull the limbs of the wounded.