单选题 A balance of international payment refers to the net result of the business which a nation carries on with other nations in a given period.

【正确答案】 C

【答案解析】画线词carries on：进行，开展，办理。替代词为选项C．transacts处置，办理。故答案为C。辨义：A．cancels取消，删除；B．appropriates占用；D．mediates调解。