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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
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- What influence does smoking have upon driving?
- When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.
- What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?
- When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him to a place where air is fresh so that he will not continue to be poisoned.
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- When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
- How to ensure motor vehicles have sufficient power when driving uphill?
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- When driving on road sections where safe sight distance is affected, such as the top of a ramp, what should drivers do to ensure safety?
- Which of the following measures is incorrect when a motor vehicle stops?
- When driving in rain and encountering pedestrians with umbrellas or wearing raincoats, what should be done by motor vehicle drivers in order to yield?
- What is the meaning of this sign?