1.Long long ago,there were some animals⋯.2.Long long ago,there was a child⋯
题目
1.Long long ago,there were some animals⋯.2.Long long ago,there was a child⋯
3.Long long ago,there was a house in the forest⋯
三选一,编一个小故事,长度100-50字之间,要求把故事写清楚.
答案
Long ago there were some animals on the earth. But now we can't see some of the animals,because they died,such as(例如) dinosaurs.Some animals died of natural disasters(死于天灾).&...
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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