21. When rescuing a wounded person suffering spinal fracture, it is necessary to ___________.

A. Take warm-keeping measure

B. Use soft stretcher to carry

C. Use sling to keep in position

D. Help the wounded person to move

Answer：C

Previous question: 20. When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?

Next question: 22. When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.

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

Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
When the tire pressure is too low, what can happen when driving at a high speed?
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?
What is the meaning of this sign?
What is the meaning of this sign?
What should motor vehicle drivers do when approaching an oncoming vehicle on a frozen road?
When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.
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.
Which lamp should be used when motor vehicles pass hrough an intersection at night where there is no traffic light signal?
What should be done by the driver who intends to overtake but the motor vehicle in front neither reduces its speed nor allows the right of way?
What is the meaning of this sign?
Which lamp should be turned on when motor vehicles pass through a road section at night where the street light condition is good?
How will the adhesive force of road change when speed increases on a damp and slippery road?
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.
What is the meaning of this sign?
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.