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54. What is the meaning of this sign?
A. Road narrows on both sides
B. Road narrows on the right side
C. Road narrows on the left side
D. Bridge narrows
Answer：B
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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 kind of harmful effect will be brought about by continuously using the foot brake on a long downhill road?
- Which one of the following measures is correct when a motor vehicle intends to overtake but the vehicle infront refuses to yield?
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- When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
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- When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
- When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
- Which of the following method is correct to rescue an unconscious person?
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
- 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.
- What is the meaning of this sign?