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89. What is the meaning of this sign?
A. Customs inspection
B. Stop-for-inspection
C. Frontier inspection
D. No passing
Answer：B
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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
- What is the meaning of this sign?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
- 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?
- Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
- What is the main impact of foggy weather on safe driving?
- What is the meaning of this sign?
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- 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?
- What is the meaning of this sign?
- When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him to a place where air is fresh so that he will not continue to be poisoned.
- When driving on a long downhill road, which is the best way to control driving speed?
- How to reduce speed or stop when driving on a road covered with snow and ice?
- What influence does smoking have upon driving?
- How should a motor vehicle follow the other vehicle In front when driving on a road covered with ice and snow?
- When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?