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29. Which of the following is an inflammable solid material?
A. Matches
B. Fireworks
C. Calcium carbide
D. Explosives
Answer：A
Previous question: 28. Matches, sulfur and red phosphorus are _________.
Next question: 30. Once inflammable gas causes a fire disaster, it should be put out with water in good time.
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 driving on road sections where safe sight distance is affected, such as the top of a ramp, what should drivers do to ensure safety?
- The wrong method to rescue a poisoned person in a traffic accident is to ______.
- What is the meaning of this sign?
- What is the meaning of this sign?
- When approaching another vehicle at night, why should the driver alternate between high-and-low-beam at a distance more than 150 meters?
- 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.
- What is the meaning of this sign?
- The article that cannot be used to stop bleeding by dressing is _________.
- What is the meaning of this sign?
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- 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.
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.
- What is the meaning of this sign?
- 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.
- What influence does smoking have upon driving?