比较乡村和城市,写一片英语短文,明天要交了
题目
比较乡村和城市,写一片英语短文,明天要交了
答案
The air in the countryside is fresher than that in the city .Besides,the environment is much more cleaner than that in the city.Although,the streets in the city are wider and the buildings are taller than those in the county,the land in the county is greener than that in city.As is known to us all,the traffic is buiser in the city than that in the country.What's worse,it's much noisier at night than that in the countryside.
为表歉意奉送一篇,
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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