I often help my mom clean the room(改为同义句)
题目
I often help my mom clean the room(改为同义句)
急用
答案
I often help my mom clean the room
=I often help my mom with the room
(help...with.“在某方面帮助某人”)
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
热门考点