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147. When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
A. Change to a high gear and pass rapidly
B. Constantly observe the changes of the flow
C. Prepare to stop at any time
D. Change to a low gear and pass through at a constant speed
Answer：D
Previous question: 146. What is the most frequent problem for driving on a muddy road?
Next question: 148. When evading an emergency, except for being calm what principle should be held by drivers?
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
- Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?
- When rescuing the persons who are losing blood, it is necessary to ______ first.
- What is the meaning of this sign?
- What is the meaning of this sign?
- How should lamps be used when motor vehicle drivers pass through a two-way tunnel?
- What is the meaning of this sign?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
- What is the meaning of this sign?
- What is the meaning of this sign?
- When rescuing a wounded person suffering spinal fracture, it is necessary to ___________.
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
- What is the meaning of this sign?
- The drivers, loaders and supercargoes responsible for dangerous chemicals transportation should all full understand the chemical characteristics, potential risks, features of the packaging containers and emergency measures for any unexpected accidents.
- What is the meaning of this sign?
- How should lamps be used when a motor vehicle meets an oncoming bicycle on a narrow road or a narrow bridge at night?
- When discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.