初三英语人教版unit14 sectiona的翻译
题目
初三英语人教版unit14 sectiona的翻译
答案
Have you been back to the place where your ancestors lived,worked,studied and played?Robert Qian,a Chinese Canadian,already has.Now in China,he has found that his family is like a tall tree with long ...
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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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