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55. What is the meaning of this sign?
A. Road narrows on both sides
B. Road narrows on the right side
C. Road narrows on the left side
D. Bridge narrows
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
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- When rescuing the persons who are losing blood, it is necessary to ______ first.
- When a motor vehicle stops temporarily in a rainy day,which lamp should be turned on?
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- Which of the following method is correct to rescue an unconscious person?
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- When rescuing a wounded person in coma, it is necessary to take warm-keeping measures to prevent heat loss.
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- When evading an emergency, except for being calm what principle should be held by drivers?
- When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?