This is ____ruler.You should give ____to ___
题目
This is ____ruler.You should give ____to ___
答案
有很多可以填啊
比如 This is __my__ruler.You should give __it__to __me_
This is _his___ruler.You should give __it__to _him__
This is __her__ruler.You should give __it__to __her_
等等
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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