谁有爱因斯坦生平介绍的文章?要英文的!
题目
谁有爱因斯坦生平介绍的文章?要英文的!
答案
Albert Einstein was born at Ulm,in W眉rttemberg,Germany,on March 14,1879.Six weeks later the family moved to Munich and he began his schooling there at the Luitpold Gymnasium.Later,they moved to Italy...
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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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