For the international commercial practice as the origin of international economic law, which of the following statements are correct ( )
A. It has two elements: material factor (i. e. repetitive and similar act) and psychological factor (i. e. considering having legal binding force)
B. It does not need psychological factor, only repetitive and similar act is ok.
C. Only after the approval of the country can it has legal binding force
D. Generally, it belongs to arbitrariness norms
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With regard to the legal status of separate tariff zone, which of the following options are correct ( )
A. The separate tariff zone is a non-state entity
B. The separate tariff zone has full autonomy in foreign trade relations and in other matters stipulated in GATT or WTO Agreement
C. The separate tariff zone has the equal legal status as a country
D. A separate tariff zone may become a member of any international organization
With regard to the content of national economic sovereignty, which of the following statements are correct ( )
A country has the ownership, the right to use and the right to dispose of the natural resources within its territory
B. A country has the right to supervise and manage foreign investment and transnational corporations within its territory
C. A country has the right to expropriate and nationalize foreign private property
D. When a country exercises its rights, it is not bound by a treaty it freely enters into
Which of the following description of the subject of international economic law in broad sense is correct ( )
A. Only include legal persons, countries and international economic organizations
B. Only include the countries and the international economic organization
C. Only include natural persons and legal persons
D. Include legal persons, natural persons, countries and international economic organizations
Which of the following descriptions of the objects of adjustment of international economic law is correct ( )
A. Only adjust the economic relations between countries
B. Only adjust the economic relations between international organizations
C. Only adjust the transnational economic relations between individuals and legal persons
D. Adjust the economic relations among countries, international organizations, legal persons and individuals in different countries
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