请给下列句子排序
题目
请给下列句子排序
( )Where does she live?
( )Is there a letter for me?
( )I think it’s from my pen friend,Annie.
( )Yes,here is your letter from the USA.
( )She is in New York and she wants me to play with her.
答案
)Is there a letter for me?Yes,here is your letter from the USA.I think it’s from my pen friend,Annie.Where does she live?She is in New York and she wants me to play with her.
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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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