帮写一个“用英语描述新年的作文”(不少于80词)急
题目
帮写一个“用英语描述新年的作文”(不少于80词)急
答案
Spring Festival is the most important festival in China.It usually comes in January or February.People usually clean their house from top to bottom and decorate their house with colored light and flow...
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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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