三篇,每篇至少80个单词.
题目
三篇,每篇至少80个单词.
答案
第一篇:15th,April This morning I went to the English corner which is in the park near my home.It is three years since it was founded.Many middle school students as well as college students and foreig...
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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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