英语短文改错Without the development of science and technology
题目
英语短文改错Without the development of science and technology
Without the development of science and technology,our world will change a lot of every way in the future.We will live in the cyberspace.If we like,we didn’t need to go out to buy thing,go to the library to read,see a doctor in the hospital,and so on.To out joy,it is very easily to visit the other stars,such as the moon and Mars.And we will own a tidy and green world because the energy what we use all from the sun.what’s more,any illness can be cured and many people can live long with a healthier body.All those will be true,I think,through our efforts.
答案
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