单项选择题
A. in duplicate; in quadruplicate; in triplicate B. in quadruplicate; in triplicate; in duplicate C. in triplicate; in duplicate; in quadruplicate D. in duplicate; in triplicate; in quadruplicate
A.日元 B.英镑 C.新西兰元 D.韩国圆
A.批发 B.销售 C.推销 D.购买