小学英语故事急用!
题目
小学英语故事急用!
答案
A wolf was almost dead with hunger. A house-dog saw him, and asked, "Friend, your irregular life will soon ruin you. "Why don't you work steadily as I do, and get your food regularly?" ...
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