quails typically have short rounded wings that enable them to spring into full flight instantly dist
题目
quails typically have short rounded wings that enable them to spring into full flight instantly disturbed in thier hiding places.的翻译
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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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