遇到自然灾害我们应该怎么做的英语高中作文
题目
遇到自然灾害我们应该怎么做的英语高中作文
答案
Some measures must be taken to deal with these frightening natural disasters.
First of all,building strong warning systems is very essential,which will help people get ready for the disasters,so we may greatly reduce the loss.Secondly,the whole world should spare no effort to protect the enviroment in order to avoid some natural disasters caused by human activities.Last but not least,countries should cooperate with each other setting uppowerful rescue systems to reduce the damage in the stricken regions.
As far as I'm concerned,if people all over the world can unite to gather,we are more likely to defeat natural disasters.
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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