We shall put up some p___ and then more people will see them and come to help us.
题目
We shall put up some p___ and then more people will see them and come to help us.
答案
posters 海报
我们应该多贴一些海报,然后就会有更多的人看到并且过来帮助我们了.
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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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