I like all the seasons英语作文
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I like all the seasons英语作文
答案
There are four seasons in a year .I like all the seasons .When spring comes,trees turn green and flowers come out .I like spring ,for everything is full of life .Summer is a good season because I can ...
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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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