A:Wow,so many beautiful photos( B:Of course you can.Here you are A:( )B:Yes ,they are
题目
A:Wow,so many beautiful photos( B:Of course you can.Here you are A:( )B:Yes ,they are
答案
第一空 Can I have a look
第二空 These photo are quite amazing,aren't they?
仅作参考..
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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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