英语作文,关于保持健康的,60词左右
题目
英语作文,关于保持健康的,60词左右
答案
As a middle school student,first you’d better do more exercise such as playing ball games,running ,swimming and jumping rope.Then you should pay attention to your diet or meals.Don’t eat too much meat and sugar but more vegetables and fruit.Third you need enough sleep or rest .Next keep yourself happy.Last you mustn’t drink wine or smoke .They are bad for your health.
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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