写澳大利亚的英语作文
题目
写澳大利亚的英语作文
50---60个词就OK!
答案
Australian is a wonderful place with climate that suits everybody. It has many natural heritages, but cultural heritages are very limted. The most famous places are the Great Barrier Reef, the Sydney ...
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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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