大一英语作文 MY First english teacher in college
题目
大一英语作文 MY First english teacher in college
大一英语作文 MY First english teacher in college 120字左右
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My first day at university It was at 10th September that I come to my university.The first impression of this campus was the beautiful scenery.Green trees and colorful flowers could be seen every...
举一反三
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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