麻烦大家找一找短的40-50单词的英语故事
题目
麻烦大家找一找短的40-50单词的英语故事
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A man goes to church and starts talking to God.He says:"God,what is a million dollars to you?" and God says:"A penny",then the man says:"God,what is a million years to you?" and God says:"a second",th...
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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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