rise by/to的区别
问题描述：
rise by/to的区别
答
rise to 上升到
rise by 以多大的倍数上升
The number of the students has grown from 1,500 to 2,500.This means it has risen____66.7 percent.
to 就是增长到了原来的66.7%,成了负增长
by就是增长了原来的66.7%,也就是加上了66.7%