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63. What is the meaning of this sign?
A. Bump road
B. Low-lying road
C. High outburst road
D. Hump bridge
Answer：B
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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
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- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
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- When a wounded person suffering bone fracture in the thigh, shank and spine, it is necessary to keep the fracture in position and refrain to move the wounded person.
- How should a motor vehicle follow the other vehicle In front when driving on a road covered with ice and snow?
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- When a motor vehicle encounters an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
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- When following other vehicles on a foggy day, what should the driver do?
- Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.