Love is like the wild rose -brair;Friendship like the holly-tree.The holly is dark when the rose-br
题目
Love is like the wild rose -brair;Friendship like the holly-tree.The holly is dark when the rose-br
答案
Love is like the wild rose-briar,Friendship like the holly-tree-The holly is dark when the rose-briar bloomsBut which will bloom most constantly?The wild-rose briar is sweet in the spring,Its summer b...
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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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