You can see railways,but there are no train on them; You can see roads,but there are no bick or ca
题目
You can see railways,but there are no train on them; You can see roads,but there are no bick or ca
on them;You can see rivers,but there are no ships on them;You can see mountains,but there are no treeor fiowers on them,either.
what is it It`s a_____.
答案
在他们身上,你可以看到河流,却没有船只在他们身上,你可以看到山,却没有treeor般静美在他们,或者.
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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