at the weekend 短文怎么写?
题目
at the weekend 短文怎么写?
答案
Last Weekend,we had a picnic on the outskirts of our city with some friends of mine.We came there by bike in the morning.There is a grassplot and a stream runs throught it.We set a camp by the stream under some trees.At noon,we began to get ready for our picnic.We had brought a lot of food and bottles of mine water.We sang and danced on the grass while having our delicious meal.We had a wondeful time there.We hated to part with it(不忍得离去)in the late afternoon.
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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