写一篇关于家乡天气的英语作文
题目
写一篇关于家乡天气的英语作文
答案
My hometown Wuhan is warm in spring,and everything begins to grow.The hottest season is summer,so every summer many people like to swim in the Yangtze River.The fall in Wuhan is like spring,neither to...
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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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