【英语】用这个短语造5句话
题目
【英语】用这个短语造5句话
you‘d better to do sth
..
写错了，是you’d better do sth...
答案
You 'd better get up early every day
You'd better study hard
You'd better help your mother with housework
You'd better exercise every moring
You'd better finish your homework in time
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
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