急,用几个英语单词编故事
题目
急,用几个英语单词编故事
hospitai,sunny,tiger,doctor,restaurnt,car,jump,grass,house
答案
It's a sunny day,a tiger walk around the zoo and see a doctor,the doctor said:you looks upset,why?I got a toothache tiger answered.Then the doctor decide to help this poor tiger,doctor ask for help fr...
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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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