Can you imagine what life will be like in ___time?
题目
Can you imagine what life will be like in ___time?
A.20 years'
B.20 year's
C.20-years'
D.20-year's选哪个?
答案
A.20 years'
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