50词左右birthday party
题目
50词左右birthday party
答案
Birthday Party
Today is my birthday.I invited my best friends to come to my house.
My mother prepared good meal for us.We sing.We dance.We eat birthday cakes.We have a lot of fun.I hope I can have birthday party everyday,but it's not possible.
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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