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124. What influence does smoking have upon driving?
A. Harmful for safe driving
B. Increase concentration
C. Help relaxation
D. No effect on driving
Answer：A
Previous question: 123. Which of the following is a bad habit when changing lanes?
Next question: 125. When driving on a long downhill road, which is the best way to control the speed?
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?
- When using splints, sticks or tree branches to keep the unexposed bones in position, it is necessary that these things should exceed the upper and lower joints of the wound.
- 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.
- What is the meaning of this sign?
- When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
- Which of the following measures is correct for rescuing a person sustaining full-body burns?
- How should lamps be used when a motor vehicle meets an oncoming bicycle on a narrow road or a narrow bridge at night?
- What is the meaning of this sign?
- How to ensure motor vehicles have sufficient power when driving uphill?
- 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.
- 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?
- The article that cannot be used to stop bleeding by dressing is _________.
- When an erosive material catches fire, it should not be put out with water cannon.
- What is the main impact of foggy weather on safe driving?
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.