杭州天气介绍,英语作文
题目
杭州天气介绍,英语作文
急,快,马上
答案
本人只能写出初中水平.In Hangzhou,the weather is very comfortable.There are four seasons a year,every season is different and has it own feature.Spring comes first.The temperature becomes higher and hi...
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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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