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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?
- When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
- Which of the following method is correct to rescue an unconscious person?
- What should be checked before driving?
- When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
- What is the meaning of this sign?
- Matches, sulfur and red phosphorus are _________.
- Which of the following measures is incorrect when a motor vehicle stops?
- What is the meaning of this sign?
- What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?
- What is the meaning of this sign?
- What is the meaning of this sign?
- How will the adhesive force of road change when speed increases on a damp and slippery road?
- When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
- What is the meaning of this sign?
- Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.