英语作文 How do you get to shchool 70词左右
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英语作文 How do you get to shchool 70词左右
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Hello!I'm a student .The students often go to school by bus and so on .I like walking ,because I think walking is good for our health .So I often go to school on foot.I sometimes go to school by bus a...
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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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