What are the problems caused by the aging population?
举一反三
- What has caused claims of huge structural problems to multiply?
- AI robot is designed solve more problems of senior people in their daily life, and it is becoming more and more popular with aging population continues to grow. This belongs to ( )
- According to BBC History Research, what has caused the problems for Titanic’s turning ability?
- 地球上人口飞速增长是人类面临的重大问题之一。 A: That the population on the earth is increasing rapidly is one of the serious problems that mankind faces. B: What the population on the earth is increasing slowly is one of the serious problems that mankind faces. C: What the population on the earth is increasing rapidly is one of the serious problem that mankind to face.
- 简要回答下列问题（请用完整句子回答，注意语法结构） What problems may be caused by overloading an aircraft?