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81. What is the meaning of this sign?
A. No changing lane
B. No left turn
C. No going straight
D. No U turn
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 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.
- 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.
- What should the driver do when he/she encounters an oncoming ambulance in the same lane?
- How should lamps be used when a motor vehicle meets an oncoming bicycle on a narrow road or a narrow bridge at night?
- What should be checked before driving?
- What is the meaning of this sign?
- When driving on a long downhill road, which is the best way to control driving speed?
- Which of the following measures is correct for rescuing a person sustaining full-body burns?
- 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 to a place where air is fresh so that he will not continue to be poisoned.
- How to ensure safe driving at night?
- When rescuing a wounded person in coma, it is necessary to take warm-keeping measures to prevent heat loss.
- Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
- When a wounded person suffering burns is thirsty, he should only drink plain boiled water.
- What is the meaning of this sign?