人教版九年级英语第二单元3a
题目
人教版九年级英语第二单元3a
我要课文!亲故们辛苦了.两篇哦,
答案
My biggest problemMy biggest problem is that I'm too busy.When I was young,I used to have so much time,but these days I get up early and stay in school,I used to spend a lot of time playing games with...
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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