Under the gold standard:

A、eachnationsdefinesthepriceofgoldintermsofitscurrencyandthenstandsreadytobuyandsellanyamountofgoldatthatprice
B、thereisafixedrelationshipbetweenanytwocurrenciescalledthemintparity
C、theexchangerateisdeterminedbydemandandsupplybetweenthegoldpointsandispreventedfrommovingoutsidethegoldpointsbygoldshipments
D、alloftheabove