求一篇写保护老虎的英语作文,急用啊,
题目
求一篇写保护老虎的英语作文,急用啊,
求求啦,最迟今天晚上啊!我们期末考试用啊
答案
Tiger is one of the most valueable animals to human beings today. It is somehow like a cat, but much bigger than it. It lives in the forest, and feeds on small animals.Nowadays, the number of the wild...
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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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