| http://www.w3.org/ns/prov#value | - heid ??? ??? ??? Why is a system of currence exchange necessary for international trade There must be a way to pay for goods purchased from countries with different types of currencies ??? ??? ??? The CFA Franc is used in what part of Africa in West and Central Africa ??? ??? ??? Which is part of a country's human capital skills and knowledge workers have ??? ??? ??? Why has the country of South A
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