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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
- When a motor vehicle temporarily stops at night, which lamp should be turned on?
- When a wounded person is under the wheel or cargo, the wrong method is to pull the limbs of the wounded.
- Which of the following measures is correct for rescuing a person sustaining full-body burns?
- How to reduce speed or stop when driving on a road covered with snow and ice?
- When rescuing a wounded person in an emergency, it is necessary to firstly stop the bleeding by compression before other methods are taken according to the conditions of bleeding.
- The first-aid measure to rescue a poisoned person is to _______.
- When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
- What is the meaning of this sign?
- When driving on a long downhill road, which is the best way to control driving speed?
- When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
- What is the meaning of this sign?
- What is the meaning of this sign?
- When rescuing a person sustaining full-body burns the rescue personnel may spray cool water to his body to put out the fire.
- What should motor vehicle drivers do when parking temporarily on a rainy day?
- What is the meaning of this sign?
- What is the meaning of this sign?