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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
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 rescuing a wounded person in an emergency, it is necessary to firstly stop the bleeding by compression before other methods are taken according to the conditions of bleeding.
- The wrong method to rescue a poisoned person in a traffic accident is to ______.
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
- When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
- What should the driver do to follow other motor vehicles on a mountain road?
- Which of the following method is correct to rescue an unconscious person?
- What is the meaning of this sign?
- Which of the following is a bad habit when changing lanes?
- What is the meaning of this sign?
- What is the meaning of this sign?
- When a motor vehicle stops in snow, which lamp should be turned on?
- When rescuing a wounded person suffering spinal fracture, it is necessary to ___________.
- 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 discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.
- When rescuing a wounded person in coma, it is necessary to take warm-keeping measures to prevent heat loss.