Family Rules
题目
Family Rules
60-80字...
答案
My Family Rules
There are some rules in my family.I have to get up at six o'clock every morning.I have to do homework after school.I can't watch TV and play computer games on school nights.On weekends,i have to clean my room and visit my grandparents.I always very busy.Although I am very busy,I still very happy.
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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