countryside,took,they,photos,of,in,lots,the
题目
countryside,took,they,photos,of,in,lots,the
countryside,took,they,photos,of,in,lots,the连词成句
答案
They took lots of photos in the countryside.
他在乡村拍了很多照片.
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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