have a good summer
题目
have a good summer
答案
Summer holiday is coming.I want to go to Beijing.I go to Beijing with my father,my mother and my brother.We want to go there by plane because it takes less time.We can see many things in it.First we c...
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