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

What is the meaning of this sign?
When evading an emergency, except for being calm what principle should be held by drivers?
When rescuing a person sustaining full-body burns the rescue personnel may spray cool water to his body to put out the fire.
What is the meaning of this sign?
When the tire pressure is too low, what can happen when driving at a high speed?
When encountering an obstacle on one side of the road, what should vehicles do as they approach each other?
Matches, sulfur and red phosphorus are _________.
What is the meaning of this sign?
What is the meaning of this sign?
When there is no bandage for rescuing a wounded person, which of the following measures is wrong?
Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
Which of the following measures is incorrect when a motor vehicle stops?
What is the meaning of this sign?
What should motor vehicle drivers do when parking temporarily on a rainy day?
What is the meaning of this sign?
When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.