Do you like playing computer game?Why/Why not
题目
Do you like playing computer game?Why/Why not
帮我设计一个回答.阅读时间一两分钟.
答案
Yes,I do.With computer,we know,in Internet we can get some information in time,download some free softwares,listen to the music and so.
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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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