万里长城的英文介绍
题目
万里长城的英文介绍
答案
The Great Wall of China is a series of stone and earthen fortifications in northern China,built originally to protect the northern borders of the Chinese Empire against intrusions by various nomadic g...
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
最新试题
热门考点