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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
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
- What should be checked before driving?
- When evading an emergency, except for being calm what principle should be held by drivers?
- 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.
- When approaching another vehicle at night, why should the driver alternate between high-and-low-beam at a distance more than 150 meters?
- What is the meaning of this sign?
- What is the meaning of this sign?
- How should lamps be used when motor vehicle drivers pass through a two-way tunnel?
- What is the meaning of this sign?
- When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
- When driving on a long downhill road, which is the best way to control the speed?
- When a motor vehicle stops temporarily in a rainy day,which lamp should be turned on?
- 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?
- When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.