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55. 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：C
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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 needs attention when a motor vehicle drives on a road covered with ice and snow?
- What is the meaning of this sign?
- 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 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.
- When a gas tanker is leaking heavily, which of the following measures is wrong?
- What is the meaning of this sign?
- 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?
- What is the meaning of this sign?
- 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 rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
- When approaching a vehicle on a narrow slope, which one of the following ways is correct?
- What is the meaning of this sign?
- What is the meaning of this sign?