初一英语作文“home rules”100词以内
题目
初一英语作文“home rules”100词以内
答案
There are many rules in my family.And most of them are about me.For example,on weekdays I have to get up early in the morning; I cant watch TV or go out on school nights; I have to go home quickly aft...
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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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