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52. What is the meaning of this sign?
A. Continuous down slopes
B. Steep downhill road
C. Steep uphill road
D. Continuous up slopes
Answer：A
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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 rescuing the persons who are losing blood, it is necessary to ______ first.
- When the tire pressure is too low, what will happen if the tire changes its shape in waves and increases in temperature due to fast movement?
- When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
- When a motor vehicle temporarily stops at night, which lamp should be turned on?
- How to ensure safe driving at night?
- What should the driver do when he/she encounters an oncoming ambulance in the same lane?
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- What is the meaning of this sign?
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- When encountering a vehicle in front ascending on a mountainous road covered with ice and snow, what should the motor vehicle driver do?
- What is the meaning of this sign?
- When using splints, sticks or tree branches to keep the unexposed bones in position, it is necessary that these things should exceed the upper and lower joints of the wound.
- What is the meaning of this sign?