鲁教版九年级英语unit3 reading翻译 急用!
题目
鲁教版九年级英语unit3 reading翻译 急用!
答案
We're trying to save the planet.Can each one of us help to save the environment?A group of student from Pine Hill Middle School got together to talk about this question.Read part of their discussion.P...
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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