求一篇 如何鼓励人们养成健康习惯 的英语作文
题目
求一篇 如何鼓励人们养成健康习惯 的英语作文
答案
Health is very important to everyone.How to keep healthy?i think good habbits are very important to us.first of all,we must eat breakfast on time every day,because it can give us the power we need dur...
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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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