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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
- When rescuing a wounded person in an emergency, it is necessary to firstly stop the bleeding by compression before other methods are taken according to the conditions of bleeding.
- What is the meaning of this sign?
- When rescuing the injured, it is necessary to ________.
- How should a motor vehicle follow the other vehicle In front when driving on a road covered with ice and snow?
- What is the meaning of this sign?
- What is the meaning of this sign?
- When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him/her to a place with fresh air so that he/she will not continue to be poisoned.
- 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 is the meaning of this sign?
- What is the meaning of this sign?
- Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
- 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.
- What is the meaning of this sign?
- What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
- When following other vehicles on the uphill section of a mountain road, what should the driver do if the vehicle in front stops?
- What is the meaning of this sign?