以this weekend写70字的作文
题目
以this weekend写70字的作文
答案
I had busy weekend!On Saturday morning I cleaned my room.In the afternoon,I did my homework.On Saturday night I watched TV.On Sunday morning I visited my aunt.My aunt cooked dinner for me.Then in the afternoon,I played computer and I did some reading.On sunday night I stayed at home and I studied for the English test
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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