一道英语语法An American marketing expert has shown that background music can boost sales or increase factory production by as much as __________.A.the third B.third C.a third

一道英语语法An American marketing expert has shown that background music can boost sales or increase factory production by as much as __________.A.the third B.third C.a third
一道英语语法
An American marketing expert has shown that background music can boost sales or increase factory production by as much as __________.
A.the third B.third C.a third

一道英语语法An American marketing expert has shown that background music can boost sales or increase factory production by as much as __________.A.the third B.third C.a third
这句话是说放背景音乐可以提高生产率,提高额为三分之一.
三分之一英语是a third