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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
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- When carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
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- 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.
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- When an erosive material catches fire, it should not be put out with water cannon.
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