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123. Which of the following is a bad habit when changing lanes?
A. Turning on the indicator in advance
B. Observing closely before changing a lane
C. Change lanes at will
D. Not obstructing the passing of other normally moving vehicles
Answer：C
Previous question: 122. When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
Next question: 124. What influence does smoking have upon driving?
2025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 2025 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 two vehicles approach each other on a foggy day, what is the best method of safe driving?
- Once inflammable gas causes a fire disaster, it should be put out with water in good time.
- When evading an emergency, except for being calm what principle should be held by drivers?
- What is the meaning of this sign?
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- When rescuing a wounded person suffering spinal fracture, it is necessary to ___________.
- The article that cannot be used to stop bleeding by dressing is _________.
- What is the meaning of this sign?
- How should lamps be used when a motor vehicle meets an oncoming bicycle on a narrow road or a narrow bridge at night?
- When approaching a vehicle on a narrow slope, which one of the following ways is correct?
- 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?
- What should be done by the driver who intends to overtake but the motor vehicle in front neither reduces its speed nor allows the right of way?
- How to ensure motor vehicles have sufficient power when driving uphill?
- What is the meaning of this sign?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?