A与B的比例用英语怎么说
问题描述：
A与B的比例用英语怎么说
答
the proportion of A over B
答
the proportion of A and B
答
The ratio of A and B is .. to ..
答
The proportion of sth to something
the ratio of sth to sth
答
The proportion of A to B
答
The ratio of A to B.
答
The ratio of a and b
eg The ratio of schoolboys to schoolgirls is 2 to 1.
男学生和女学生的比例是2比1.
答
ratio of A and B