英语作文outdoor activities
题目
英语作文outdoor activities
答案
internet has been playing an important role in our daily life since the the end of last century.
people can find almost any information they want on internet,such as the latest movies,news,games even buying something.
buying books online is popular nowadays.it means you can have your favourite books ordered without leaving home just by clicking on the icons on some websites which sell books and are responsible to deliever books to you.
Obviously,it's more convenient to those who are alwasys busy and seldom have spare time for outdoor activities,especially for the people with physical disabilities and the olds.
High-teches make our life easier and simpler.just make most of them and have your wonderful time.
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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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