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Olimpiade Sains Kota (OSK) 2012 - Ekonomi , Nomor 12

12

On the exchange of commodities people can sell or buy goods such as coffee, cloves, sugar, corn and others. Transactions can be effective but it is not uncommon speculative. The traded goods must meet the requirements ....

a. guaranteed quality of WTO

b. is a versatile item

c. created by the G7 countries

d. quality standards

e. durable and long lasting