英语作文 我的新英语老师
题目
英语作文 我的新英语老师
答案
Miss Wang is our new english teacher. She gave us very good impressions. She is young, enthusiastic and energetic. She always smiles to us. She has her own special way of teaching and we all like it. ...
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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