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49. What is the meaning of this sign?
A. Slippery section
B. Sharp curve
C. Inverse curve
D. Continuous curves
Answer：D
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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
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to fix the wounded part in position, then stop the bleeding and dress the wound.
- 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?
- What is the meaning of this sign?
- What is the most frequent problem for driving on a muddy road?
- The article that cannot be used to stop bleeding by dressing is _________.
- Once inflammable gas causes a fire disaster, it should be put out with water in good time.
- When rescuing the persons who are losing blood, it is necessary to ______ first.
- When following other vehicles on a foggy day, what should the driver do?
- What is the meaning of this sign?
- What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?
- When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.
- What is the meaning of this sign?
- How to ensure motor vehicles have sufficient power when driving uphill?
- Which of the following is a bad habit when changing lanes?
- When rescuing the injured, it is necessary to ________.