《我们的校园》初中英语作文
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《我们的校园》初中英语作文
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初中作文?简单Our school is big and nice.When you come into our school,you can see two tall buildings.In the buildings there are two computer rooms,an art room,a music room a library and many classro...
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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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