两个月以前看过,我回忆一下。。。
compared to/with没区别;
Ron的意思应该是在GMAT里面compared to不能和比较的结果连用。
就是说你只能直接说出两个比较对象,不能说哪个更多哪个更少
EG:There are 40% female students this year, compared to 30% last year.
不能说There are more female students this year compared to last year.
More/less要和than连用