英语翻译
题目
英语翻译
求翻译下面这段话!万分感激!
There are laws to physics,right?So explain this,how can something get bigger,and smaller?There’s more of it,and less of it.Well,I guess the laws of physics are more like,general guidelines.
答案
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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