how are you n wts up.this is irfan from pakistan.i am a graphic designer..what do u do
题目
how are you n wts up.this is irfan from pakistan.i am a graphic designer..what do u do
答案
How are you?
What's up?最近怎么样?
This Irfan from Pakistan.我是来自巴基斯坦的Irfan
I am a graphic designer.我是一名美术设计师.
What do you do?你是干什么的呢?
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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