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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.
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 is the meaning of this sign?
- What is the main impact of foggy weather on safe driving?
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
- When an erosive material catches fire, it should not be put out with water cannon.
- When driving on a long downhill road, which is the best way to control driving speed?
- Which of the following method is correct to rescue an unconscious person?
- What should be checked before driving?
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- When rescuing the persons who are losing blood, it is necessary to ______ first.
- 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 kind of harmful effect will be brought about by continuously using the foot brake on a long downhill road?
- What is the meaning of this sign?
- When a motor vehicle encounters a burning phenomenon, it should leave the vehicle quickly so as not to cause injury or asphyxia to the respiratory tract.