组句 Mary linda and at the dairy at the dairy be the day before yesterday
题目
组句 Mary linda and at the dairy at the dairy be the day before yesterday
答案
at the dairy重复了.
Mary and Linda were at the dairy the day before yesterday. Mary和Linda前天去了牛奶场.
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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