后天就要英语比赛啦,一分钟自我介绍英语作文,
题目
后天就要英语比赛啦,一分钟自我介绍英语作文,
答案
Good morning everyone. I am so happy to stand here to introduce myself to you all. I am study in ** university till 2012. My major is **. I study hard in school, and got 2 time scholarship. In my sparetime reading and writing is my favorite, joining some social activities as a volunteer is interesting and meaningful, and I also do some exercise. I wanna become a "useful" person one day.
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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