She(like,likes)Chinese stamps.We like(take,taking)pictures.These are(stamp,stamps)
题目
She(like,likes)Chinese stamps.We like(take,taking)pictures.These are(stamp,stamps)
I have an(American,Americe)stamp
答案
She(likes)Chinese stamps.We like(taking)pictures.These are(stamps)
I have an(American)stamp
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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