利用下列所给的词写60字英语作文
题目
利用下列所给的词写60字英语作文
season environment temperature excellent film fox
答案
There is an excellent film called "the day after tomorrow".It is a story which sets people thinking.Because of the destruction of people,the environment become very bad.The temperature drop sharply,so...
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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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