六一儿童节的有中文翻译英语文章
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六一儿童节的有中文翻译英语文章
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Children,also known as "June 1 International Children's Day," the annual June 1,the world of children's festivals.November 1949,the Women's International Democratic Federation council meeting held in ...
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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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