关于电脑的小短文,60字左右的Are computers important to our life?
题目
关于电脑的小短文,60字左右的Are computers important to our life?
答案
I think computers are important in our lives.with a computer ,we can save a lot of times and it brings us much convince.for example ,we can read online newspapers and get to know the world just stayi...
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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
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