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146. What is the most frequent problem for driving on a muddy road?
A. High resistance force
B. Sideways slide
C. The motor vehicle bumps
D. Steering failure
Answer：B
Previous question: 145. When two vehicles approach each other on a foggy day, what is the best method of safe driving?
Next question: 147. When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
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
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
- When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
- Which one of the following measures is correct when a motor vehicle intends to overtake but the vehicle infront refuses to yield?
- What is the meaning of this sign?
- When a motor vehicle stops in snow, which lamp should be turned on?
- What is the meaning of this sign?
- When putting out a fire disaster that gives out erosive steam or poisonous gas, the firefighters should wear gas masks and other related protective articles and should operate from the windward side.
- When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
- 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?
- What is the meaning of this sign?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
- What should the driver do to follow other motor vehicles on a mountain road?
- When a motor vehicle temporarily stops at night, which lamp should be turned on?
- 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.