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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 is the meaning of this sign?
- 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.
- Which of the following is an inflammable solid material?
- What influence does smoking have upon driving?
- Which of the following measures is incorrect when a motor vehicle stops?
- Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
- What is the meaning of this sign?
- 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.
- At the scene of a traffic accident, once there is a leakage of toxic and harmful substances, people must be evacuated at the first time and alarmed immediately.
- When a gas tanker is leaking heavily, which of the following measures is wrong?
- What should the driver do to follow other motor vehicles on a mountain road?
- 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?
- When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
- When rescuing a wounded person suffering spinal fracture, it is necessary to ___________.
- What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?
- When a wounded person suffering burns is thirsty, he should only drink plain boiled water.