用go to the park写一篇40字左右的英语短文
题目
用go to the park写一篇40字左右的英语短文
答案
The other day I went to the park for a walk after supper. when I saw a newly painted chair, which looked very comfortable with a natural white color, I felt like sitting on it. Then I stepped ahead and sit down. A cardboard on the ground caught my attention. I picked it up and found something written on it: "Wet. Do not sit." I stood up hurrying back home and pretended to be as calm as nothing had happened, ignoring the acquaintances' laughing greetings: "I like your zebra outfit!"
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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