is defined as the statistical record of a country's international transactions over a certain period of time presented in the form of a double-entry bookkeeping.
B.
provides detailed information concerning the demand and supply of a country's currency.
C.
can be used to evaluate the performance of a country in international economic competition.
【单选题】An improvement in a country's balance of payments usually means a decrease in its balance of payments deficit, or an increase in its surplus. In fact we know that a surplus in a balance of payments ( ...