英语作文:An inetresting day!怎么写?60字,
题目
英语作文:An inetresting day!怎么写?60字,
答案
One day in summer holiday,all my family went to climb a mountain.Though I was soon tired.I didn't give up.The aim attracted me to run foaward,in the end I reached the top.so I was the first one to get...
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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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