A new student comes to my class.His name is Ted.He 1.__(come)from Australia.He is fifteen years
题目
A new student comes to my class.His name is Ted.He 1.__(come)from Australia.He is fifteen years
old,In his family,there 2.__(be)five people.He 3.__(like)playing soccer very much.He often 4.__(play)soccer with his family.Look!His parents 6.__(talk)with each other.Ted and his brother 7.__(take)photos of animals.What is his sister doing?She 8.__(eat)an ice-cream
He often 4.__(play)soccer with his friends.Today is Sunday.He 5.__(go)to the zoo with his famliy.Look!His parents 6.__(talk)with each other.Ted and his brother 7.__(take)photos of animals.What is his sister doing?She 8.__(eat)an ice-cream
答案
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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