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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 should motor vehicle drivers do when parking temporarily on a rainy day?
- When a motor vehicle encounters an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
- What is the meaning of this sign?
- What is the meaning of this sign?
- What is the meaning of this sign?
- 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.
- When driving on a long downhill road, which is the best way to control driving speed?
- When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
- When approaching another vehicle at night, why should the driver alternate between high-and-low-beam at a distance more than 150 meters?
- Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
- In emergencies, people¡¯s life safety should always be put in the first place.
- 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?