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34. When a gas tanker is leaking heavily, which of the following measures is wrong?
A. Cut off the power
B. Wear gas mask and protect gloves
C. Turn off the valve to stop leaking
D. Evacuate people to the leeward side
Answer：D
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?
- When rescuing the injured, it is necessary to ________.
- Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
- 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 the driver do to follow other motor vehicles on a mountain road?
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
- What is the meaning of this sign?
- How should lamps be used by the motor vehicle driver who follows a vehicle on a road section at night where he street light condition is good?
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- 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.
- How to ensure safe driving at night?
- What is the meaning of this sign?
- 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.
- What is the meaning of this sign?
- What is the main impact of foggy weather on safe driving?