1. The forth chapter"Counterplea of Product Defect"is the complement of conceptual standards for determining defectiveness, which is an important part of product defect legal system.

2. Guarantor gives up all counterplea and the right of state.

3. Establishing the system of the right of uneasy counterplea plays a positive role on defending trade order and ensuring trade safety.

4. The fourth chapter Counterplea of Product Defect is the complement of conceptual standards for determining defectiveness, which is an important part of Product Defect legal system.

5. The guarantor still has the right to counterplea even if the debtor gives up the right to counterplea .

6. Negotiable Instrument Counterplea system is an exceptional instrument law system.

7. Negotiable instruments counterplea has a tight binding with a nation's economic development.

8. Thirdly debtor can use the rights of counterplea derived from the contract to oppose the third party.

9. To this kind of case, if website still with knowing to counterplea undertakes for tort, without the basis,[Sentencedict] also do not accord with avoid duty condition.

10. At present there are two kinds of theories on main contents of counterplea for joint dangerous act: affirmance theory and denial theory, which are both not distributive.

11. In practice, It is important to use coincident performance counterplea properly. It has great significance to maintain order of transaction and guarantee security of transaction.

12. So the essay will meanly focuse on the concept of news tort, the counterplea of news tort and the application of News Tort counterplea .

13. How to solve above problems and avoid them is urgent for reforms of counterplea system.

14. In the civil law, it is embodied in the right for unstable counterplea, in Anglo-American law it is reflected in the right for the anticipatory breach of contract.

15. From the view of motion safety, limitations should be laid for the counterplea.

16. This paper makes an analysis into the significance of jurisdiction over arbitration, the counterplea and its adjudication, and the conflict between the tribunal and the court and its coordination.

17. Thus, we must strengthen the publicity of the law for bill of exchange, develop the counterplea limitation system and perfect the legislation of bill of exchange to ensure the circ.

18. Part four of this paper compares doctrines of uneasy counterplea right and anticipatory breach of contract on account of their similarities.

19. The system of intellectual property can form certain restriction itself, the owner of IP rights can seek to the counterplea of abuse from fairness, justice and honesty principle of the civil law too.

20. And potato net still applied " port principle " undertake counterplea , potato net puts forward to had not received obligee notice reason should not assume liability to pay compensation.