In the case of direct quote, the first figure after the fixed amount of foreign currency is .
buying rate
B、the selling rate
C、the medial rate
D、the transaction rate

The terms of IDA credits are traditionally made only to .countriesB、developing countriesC、governmentD、non-governmental organizations

A、developed

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A ___is a tax levied on a commodity when it crosses the boundary of a customs area which usually coincides with the area of a country.

A、tariff
B、fine
C、charge
D、surcharge

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