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81. What is the meaning of this sign?
A. No changing lane
B. No left turn
C. No going straight
D. No U turn
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
- 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.
- 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?
- When carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
- When discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
- When two vehicles approach each other on a foggy day, what is the best method of safe driving?
- 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 driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
- 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?
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?