急 要一份关于野餐的英语作文
题目
急 要一份关于野餐的英语作文
短的
答案
Last weekend we went to the countryside to have a picnic.We took several sandwiches and some bottles of water with us for lunch.Of course we didn't forget to take some fruit and we even took some tomatoes and cucumbers.
We left home quite early in order to avoid the traffic jam.About two hours later,we came to a nice place.It was near a river.We put our bicycles under the trees and went swimming.It was a very hot day.The water was very refreshing.
After having a swim,we had lunch in the cool shade under the trees.Then we went for a walk.We didn't come back home until the night fell.
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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