随着计算机的普及,互联网的发展,“秀才不出门,便知天下事”已变成了现实。

(1)请同学们分别从学习和生活方面各举2例说明互联网技术的应用:
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(2)当前我们国家上网的主要是哪些人?
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(3)网络是一把双刃剑,一些青少年却上网成瘾,深陷虚拟世界而不能自拔。对此,谈谈你的看法(从不同角度谈出两点)
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