跪求英语free talk
题目
跪求英语free talk
题材不限字数100左右所用词汇尽量简单点
答案
As the capital city of Chinam,Beijing is the Mecca for many tourists.I visited last autumn with a travel agency.It was amazing trip as i explored Beijing's ancient past and enjoyed its exciting modern...
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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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