what is a form of courage and why
题目
what is a form of courage and why
答案
嗯,江苏省的希望之星选手吧?很不错嘛,我也是的,握个paw吧~~~~~~~Happiness is a form of courage Many people think that when become rich and successful , happiness will naturally follow . let me tell you t...
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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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