think about your favorite thing from childhood witch you still have.For example,it can be a toy or a
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think about your favorite thing from childhood witch you still have.For example,it can be a toy or a book .Then take notes using the questions.1How long have you did?2How did you get it?Did someone give it.to you?Who?3Why do you like it so much?Why it is special?4Can you say anything more about it?此篇作文70词,要完整,语序和时态要对,,
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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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