给这篇托福作文打个分...
题目
给这篇托福作文打个分...
Has technology made the world a better place to live?In fact ,when
we talk about such complex question ,we cannot easily give a yes-no
answer.Whatever,I would like to say,there are more advangages has been
brought by technology.
Firstly,what the most obvious we can see is that :With the
development of technology ,our life became more and more convenient.Certainly,
hundreds years ago,as a common sense,people live without telephone.
Therefore it is relatively too hard to communicate between people who
live far away from each others.For example:If flood happened thousands
mile away capital,emperor can only be informed only by horse-riding
way.Precious time would be wasted on road at last.However,as phone
presented,such important news can be passed on easily .Not only this
invention contributes to this kind of big cases ,but also can be used for
folks.When their offspring travel outside,mothers miss sons ,fathers
rem
答案
4.0-5.0,二十五六分吧
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
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