they cover around 300 square km and were first happened upon by robert
题目
they cover around 300 square km and were first happened upon by robert
答案
它们涵盖300平方公里,是第一次发生后,由罗伯特史葛
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