west lake has become famou (没打错) its special scenery as well as some beautiful poems,
题目
west lake has become famou (没打错) its special scenery as well as some beautiful poems,
而且那个famou 啥意思啊
答案
famous不是你打错了,使他们印错了.
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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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