______ refers to the rate by which a commercial bank buys a curr

______ refers to the rate by which a commercial bank buys a currency.
A、The buying rate
B、The selling rate
C、The medial rate
D、The foreign rate
【正确答案】：A
【题目解析】：The buying rate refers to the rate by which a commercial bank buys a currency.
参见教材P230。