Being brave means that you do what you have to do.改为同义句
题目
Being brave means that you do what you have to do.改为同义句
答案
Being brave refers to the fact that you do what you have no choice to do.
举一反三
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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