初一年两篇100字暑假英语短文 还要翻译
题目
初一年两篇100字暑假英语短文 还要翻译
答案
summer holiday is coming ,i'm willing to do something in the coming days,the plan i made as follow :first, i will do some housework for my mother,i want to help her to cook breakfast,wash clothes etc;...
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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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