求一篇 英语 作文 love around me
题目
求一篇 英语 作文 love around me
答案
I have many friends.But my friends are "Q" "Ying" "Salt" "Dong" "Hua" and "Shan".They are very friendly to me.When I have problems,they can help me solve the problem and make me langh.Once,I had a bad...
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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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