英文作文How to keep fit?
题目
英文作文How to keep fit?
最好字数多点
答案
How to keep healthy?
Everyone wants to keep healthy.But how do you keep healthy?If you want to keep healthy,you should eat more vegetables and fruit,because they are good for your body.If you want to keep healthy,you should go to bed early and get up early,too.If you want to keep healthy,you also should do more exercise,is very important.If you can do it,I think you can keep healthy.
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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