用英语介绍自己的全家福 我是三口之家
题目
用英语介绍自己的全家福 我是三口之家
答案
This is a photo of my family,these are my parents,my father is a offical,my mother is a teacher,they are good parents,they love me and I love them,ah,this is my brother,he is 11,he is in class 3,grade 5,this is me,I am a happy girl.This is my family,I love my family!
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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