How to bear legal responsibility for parabolic objects in the civil code?

If personal injury is caused by falling objects from high altitude, the compensation standard for personal injury is: all expenses incurred in medical treatment and income reduction due to missed work, including medical expenses, missed work expenses, nursing expenses, transportation expenses, accommodation expenses, hospital food subsidies and necessary nutrition expenses, and the compensation obligor shall compensate. If an object thrown or falling from a building causes personal injury to others, the infringer shall be liable for damages. If the infringer is unclear, the user of the building who may cause damage shall pay compensation, unless he can prove that he is not the infringer. In addition, since the entry into force of the Civil Code, building managers such as property service enterprises have failed to take necessary security measures, and should bear the tort liability for failing to fulfill their security obligations according to law. Article 1254 of the Civil Code prohibits throwing objects from buildings. If an object thrown from a building or an object falling from a building causes damage to others, the infringer shall bear tort liability according to law; If it is difficult to determine the specific infringer after investigation, in addition to being able to prove that he is not an infringer, the user of the building who may cause harm shall be compensated. After compensation, the user of the building who may cause damage has the right to recover from the infringer. Property service enterprises and other building managers shall take necessary safety measures to prevent the occurrence of the situations mentioned in the preceding paragraph; Those who fail to take necessary security measures shall bear the tort liability for failing to fulfill their security obligations according to law. In case of the circumstances specified in the first paragraph of this article, the public security organ and other organs shall promptly investigate and find out the responsible person according to law.