When Jim was six years old,he went and stayed with his grandparents in the country for a few weeks
题目
When Jim was six years old,he went and stayed with his grandparents in the country for a few weeks
翻译
答案
当吉姆6岁时,他去和祖父母在乡下住了几周.
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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