英语作文成功的关键是什么
题目
英语作文成功的关键是什么
答案
What’s the Key to SuccessWhat do you think is the key to success?In my mind,confidence is the key to success.A confident person means he has faith in himself.No matter he can succeed or not at last,h...
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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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