preparing for a picnic50字作文
题目
preparing for a picnic50字作文
答案
Preparing for a picnicWe will have a picnic in the Ocean Park tomorrow.I will go there with myparents and my good friends.We will go there bu bus and come back by underground.We will buy some cola,som...
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