锻炼的好处英文作文
题目
锻炼的好处英文作文
答案
As we know,sport plays an important role in our daily lives.
Whenever you do some exercise,you can get a whole new refresh feeling through your body.It really does good to you.For example,going out to play ball games,which is becoming more and more popular these days,can get rid of bad moods,and help you be energetic again.In order to keep fit,you can keep a habbit of doing sports regularly.You'll benefit a lot from it.
All in all,we'd better pick up our balls,and go out,to have an exciting game.Ready?Go?
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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