" when a man is tired of London,he is tired of life
题目
" when a man is tired of London,he is tired of life
答案
When a man is tired of London,he is tired of life" (Samuel Johnson).“当一个人厌倦了伦敦的时候,他也厌倦了生活” （萨缪尔·约翰逊）.When a man is tired of London,he is tired of life; for there is in Lo...
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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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