英语填空.比较简单、、
题目
英语填空.比较简单、、
A:Who is she? B:She is my new classmate. A:What's her name? B:Her name is Maria. A:What does she look like? B:She is short,and she has a long face and short hair. A:Oh,look!( )?Are they yours? B:No,it's not mine.My shoes are here.I think they're Maria's.
答案
Whose shoes
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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