要有些男英雄的,好朋友,介绍名人.就这三篇,
题目
要有些男英雄的,好朋友,介绍名人.就这三篇,
答案
Yang Liwei was born in an ordinary family in Liaoning Province in 1965.He became a pilot in Chinese Air Force in 1987,spending 1,350 hours in the air.He has spent 5 years training to become a spaceman...
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