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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 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.
- What is the meaning of this sign?
- When the wounded person is suffering main artery bleeding, where should the rescue personnel press by thumb to stop the bleeding?
- What is the meaning of this sign?
- When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
- When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
- When a motor vehicle encounters an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
- When a motor vehicle temporarily stops at night, which lamp should be turned on?
- What is the meaning of this sign?
- What is the meaning of this sign?
- What should the driver do to follow other motor vehicles on a mountain road?
- What is the meaning of this sign?
- When a wounded person suffering burns is thirsty, he should only drink plain boiled water.
- When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.
- The article that cannot be used to stop bleeding by dressing is _________.
- What is the meaning of this sign?