my favorite sport 小学生的英语作文 不少于5句话
题目
my favorite sport 小学生的英语作文 不少于5句话
答案
My favourite sport is playing basketball. I like it very much. And I am very good at it . I think it is good for my health. Michael Jordan is my favourite basketball player. He is great . He is very f...
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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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