there are so many dogs in 2006 cakendar对in 2006 calendar提问还有变否定句 一般疑问句 单数形式
题目
there are so many dogs in 2006 cakendar对in 2006 calendar提问还有变否定句 一般疑问句 单数形式
答案
where are so many dogs?
there are not so many dogs in 2006 calendar
are there so many dogs in 2006 calendar?
there is a dog in 2006 calendar
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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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