Two cats climb up a big apple tree.They want to catch a mouse.But there are too many leaves.They wan
题目
Two cats climb up a big apple tree.They want to catch a mouse.But there are too many leaves.They want to get down but suddenly fall.They break their legs and stay indoors.
答案
两只猫爬上了一棵大苹果树,他们想要抓住一只老鼠,但是树上有很多的叶子,两只猫想下去但是突然掉了下去,他们摔断了他们的腿,后来他们呆在室内.
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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