帮忙写一篇英语作文,关于请Mary去看电影
题目
帮忙写一篇英语作文,关于请Mary去看电影
答案
Mary,this weekend is coming.Have you made some plans?You know,l have booked two tickets for the latest movie.I am told that you are fond of watching movies.I'd like inviting you to the movie.I wonder ...
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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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