阅读幽默小故事,给出合适的标题
题目
阅读幽默小故事,给出合适的标题
Not long after an old Chinese woman came back to China from her visit to her daughter in the states,she went to a city bank to deposit the us dollars her daughter gave her.At the bank counter,the clerk checked each note carefully to see if the money was real.It made the old lady out of patience.
At last she could not hold any more,uttering."Trust me,Sir,and trust the money.They are real US dollars.They are directly from America."
答案
Trust me
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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