The criminal law should make a preference for the patient s interest and the causal relation in medical field should be analyzed by the theory of increased risk.

This paper makes a comparative study on the duty to notify for alteration of risk in marine insurance, concentrates on the concept of alteration of risk, the conditions of the duty and the sanctioning system, and makes some suggestions for China legislation in this aspect.

To strengthen the management of the high risk medical instrument;

With the analysis of the high risk tendeney in the assets managment of state owned commercial banks,the violent competition of the financial organisations,the protection of depositor s lawful rights and interests,the reinforcement of macro control,the importance of set up deposite insurance system in China is analyzed.

Being a large aged country in the world, the binding factors are mainly focused on the counting technique and the related system, the high risk and also the high premium rate.

Based on the analysis of the embarrassing situation of flood preventions engineering and its present study conditions and tendency, the essentiality and urgency for study on sustainable utilization and management of land resources in high (hazardous) risk areas were expounded.