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48. What is the meaning of this sign?
A. Slippery section
B. Sharp curve
C. Inverse curve
D. Continuous curves
Answer：C
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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?
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- Matches, sulfur and red phosphorus are _________.
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- When removing a wounded person suffering spinal fracture, the rescuer should never help the wounded person to walk. He may be carried away with a soft stretcher.
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- 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.
- In emergencies, people¡¯s life safety should always be put in the first place.
- What is the meaning of this sign?
- When the tire pressure is too low, what can happen when driving at a high speed?
- Which of the following method is correct to rescue an unconscious person?
- When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.
- What is the meaning of this sign?