Gold Franc (GF):

A、 A nominal currency used by LESs and accounting authorities to calculate communication charges incurred by an MES. A fixed rate of exchange exists between the GF and the nominal currency the SDR: 1 SDR = 3.061 G
F、
B、 It is a currency used in France.
C、 The coins are made of gold.
D、 The exchange rate between the GF and SDR is invariable.