【My good friend】
题目
【My good friend】
写一篇小短文,写的短一点
答案
My good friend is a beautiful girl called Betty,who is 12 years old now.
She was born in England but these years she lives in Nanjing.
She looks very tall and slim,and she wears long black hair.
She studies in the 7th grade at Nanjing No.1 secondary School,in Class 1.
She loves reading,and every Friday afternoon is her time for a reading club.
What's more,she likes singing.She listens to the music at weekends,too.
She is polite and helpful,and everyone likes her very much.
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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