1.There are seven days in a week.(对seven提问) 2.The book is ten yuan.(对ten yuan提问)
题目
1.There are seven days in a week.(对seven提问) 2.The book is ten yuan.(对ten yuan提问)
答案
How many days are there in a week?
How much is the book?
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