The default currency should be the currency you use most.  In most cases, only one currency will be used which will be your local currency.
默认的币种应是您使最常用的货币种类。在大多数情况下，只有您所在地使用的货币是唯一的币种。
All accounts created within jGnash will use this currency by default, but other currencies can be selected when creating new accounts.
jGnash创建的所有账户都将只是用这一货币作为默认币种，但在创建新账户时也可以选择其他币种。