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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
- 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 should motor vehicle drivers do when parking temporarily on a rainy day?
- What is the meaning of this sign?
- When a motor vehicle encounters an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
- What is the meaning of this sign?
- What is the meaning of this sign?
- When putting out a fire disaster that gives out erosive steam or poisonous gas, the firefighters should wear gas masks and other related protective articles and should operate from the windward side.
- Once inflammable gas causes a fire disaster, it should be put out with water in good time.
- Which of the following method is correct to rescue an unconscious person?
- The article that cannot be used to stop bleeding by dressing is _________.
- Matches, sulfur and red phosphorus are _________.
- What is the meaning of this sign?
- When using splints, sticks or tree branches to keep the unexposed bones in position, it is necessary that these things should exceed the upper and lower joints of the wound.
- Which of the following is a bad habit when changing lanes?
- The first-aid measure to rescue a poisoned person is to _______.