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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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2026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 2026 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
- What is the meaning of this sign?
- What is the meaning of this sign?
- When rescuing a wounded person suffering spinal fracture, it is necessary 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.
- What should motor vehicle drivers do when parking temporarily on a rainy day?
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
- 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.
- What should the driver do when he/she encounters an oncoming ambulance in the same lane?
- 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/her to a place with fresh air so that he/she will not continue to be poisoned.
- What is the meaning of this sign?
- When rescuing a wounded person in an emergency, it is necessary to firstly stop the bleeding by compression before other methods are taken according to the conditions of bleeding.
- What is the meaning of this sign?
- How will the adhesive force of road change when speed increases on a damp and slippery road?
- What is the meaning of this sign?