用英语描述一幅图片.
题目
用英语描述一幅图片.
答案
【房间图片哦】this is my room. its tidy . my hat and my quilt are on the bed . the soccer is on the fioor . my books and my computer game are on the desk . the dask is near the windoy. my clock is on ...
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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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