28. Matches, sulfur and red phosphorus are _________.

A. Explosives

B. Inflammable solid materials

C. Self-igniting articles

D. Oxidizing materials

Answer：B

Previous question: 27. Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?

Next question: 29. Which of the following is an inflammable solid material?

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?
How should lamps be used by the motor vehicle driver who follows a vehicle on a road section at night where he street light condition is good?
When two vehicles approach each other on a foggy day, what is the best method of safe driving?
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.
The article that cannot be used to stop bleeding by dressing is _________.
When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
When the tire pressure is too low, what will happen if the tire changes its shape in waves and increases in temperature due to fast movement?
When removing a wounded person suffering spinal fracture, the rescuer should never help the wounded person to walk. He may be carried away with a soft stretcher.
What is the meaning of this sign?
What is the meaning of this sign?
What should motor vehicle drivers do when parking temporarily on a rainy day?
In emergencies, people¡¯s life safety should always be put in the first place.
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?
What is the meaning of this sign?
How to ensure motor vehicles have sufficient power when driving uphill?