网络安全的英语作文.英语4级格式,120—150字,
题目
网络安全的英语作文.英语4级格式,120—150字,
答案
With the development of compiter,and in order to make our life more colorful,many computer socialists are majoring in video games designment,which makes the video games very popular in recent years.Many teenagers are being attracted by video games.Every day after school some teenagers will bury themselves in video games at home or in video arcades.They concentrate all their attention on video games,with their hands busy operating.
Video games are a kind of wonderful entertainment.They bring great pleasure to teenagers,train them to respond quickly,stimulate their imagination and interest in electronics and computer science.
Just as a coin hastwo sides,video games also have some disadvantages.School children spend too much time on video games,which would do harm to their eyes and affect their school achievments.Also,playing video games doesnot allow them to use their natural creativity.Some of them even commit crimes in order to get enough money for the games.Only if one has enough self-control can he benefit from computer games.
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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