英语翻译
题目
英语翻译
What has four eyes but cannot see?
What do vampires do at midnight?
What ’s the beginning of eternity,the end of time and space;the beginning of end,and the end od every place?
What is deat and dump but always tells the truth?
What has a tongue but cannot talk?
What did one penny say to the other?
What has a ears but cannot here?
What has teeth but cannot eat?
What is yours but is used by others more than by yourself?
What goes through a door but never comes in or goes out?
What runs all around the ground but never moves?
What can go through water but never get wet?
What kind of house weights least?
答案
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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