Heal the world开头小女孩念的是什么?最好有翻译
题目
Heal the world开头小女孩念的是什么?最好有翻译
答案
Think about the generations and say that we want to make it a better place for our children and our children's children,so that they know it's a better world for them,and think they can make a better ...
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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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