急求,关于3分钟演讲的英语短文,最好是关于生命的
题目
急求,关于3分钟演讲的英语短文,最好是关于生命的
不要太难,最好是初二的水平,比赛急用~
答案
Every new life come to the world always needs a long process .life is a amazing thing of universe .As far as we know ,earth is the only planet which could creat life !In the earth ,without air water ,we couldn't live !but ,now ,the life that created by earth destroying the earth .life always thought is amazing .but ,now,in my opinion ,the life start become more and more bad .It just concern about themselves ,they don't care about the earth at all.I hope the life can pay more attention to the earth !
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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