一件有趣的事 英语作文 50字左右
题目
一件有趣的事 英语作文 50字左右
答案
An interesting thing happened on yesterday.At night,when I was sleepping ,I dreamed I sleeping on a dog's body,and the dog suddenly jumping up and shouting at me,he said:"I want to eat you,you smell very delicious!"Then I ran away quickly."ling ling ling!"A big sound was happened,I woke up quickly,then,I thought,where I am?Oh,that is my dream,just a dream.
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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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