Study on the economic and trade policies of the South Pacific island countries 并列题名：Study on the economic and trade policies of the South Pacific island countries Study on the economic and technical policies on the intensive utilization of water resources Study on foreign economic and trade strategy of five asean countries 并列题名：Study on the economic and technical policies on the intensive utilization of water resources Study on the international trade policy and changes in developed countries 并列题名：Study on foreign economic and trade strategy of five asean countries