求一篇英语作文,题目是how to protect your eyesight,字数80
题目
求一篇英语作文,题目是how to protect your eyesight,字数80
答案
How to protect your eyesight
With the burden of study increasing,more and more students become short sight.So we asked the eye specialist how to deal with the problem.The specialist suggest that,first,the students should control the reading time.When the students read the book for an hour,they should have a rest or do some exercises to make their eyes relax.Second,they should pay attention to the light.The light should not be too dark or bright.Third,the students should do eye exercise regularly to protect their eyes.Fourth,the students should get plenty of sleep.More sleep means more rest of eyes.We hope those suggestions are useful and can protect your eyesight.
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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