《三只小猪》的英语剧本
题目
《三只小猪》的英语剧本
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题目:the three little pigsnarrator:once upon a time,there were three little pigs,named pete,pat and paul.they were brothers.one day,they left their mother's house.it was winter.they wanted to build ...
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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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