[英语最快要多久能学会]这个啊 看你“英文聊天的地步”是指什么 到底聊些什么 拉拉家常啊 聊些一般话题 0基础 估计一年就够了 要是聊专业话题 或者聊的话题太宽、太深 那么估计好几年甚至十几年都...+阅读
Protects the eye to start from the present As the saying goes the eye is the mind window, it is said our humanity obtains in the information, the visual information occupies 70% above, thus it can be seen eye's importance. Along with informationization time's oncoming, takes the magnanimous information the main carrier, the computer as well as the network soon substitutes for the newspaper television, becomes the first media. From the initiation question is, the people are getting more and more long facing the computer monitor's time, from this has created not the small burden to the eye. Takes slightly arranges for the example: Every day works for 8 hours, besides eats meal, transfers the market to take 1-2 hours, other time nearly soak in front of the computer, such one year gets down for almost one year to work about for 250 days, calculated down is 1500 hours, gathers more than a 62 day of spot. That is, slightly arranges in 1 year 365 day must stare at the computer monitor to look at 1/5 time fearfully - -!Slightly arranges the good and evil also to have the extension market and so on “the rest” the time, if is occupation and so on engineering design personnel, software engineer people must be longer facing computer's time. The so frequent use monitor, definitely will cause certain damage to our eye, moreover this already was a serious professional question, just like silicosis will be miner's occupational disease is the same. Before with CRT time, the eye health's question easy to arouse everybody's interest, but to liquid-crystal display time, because widely propagandizes the healthy environmental protection idea, many people thought that the liquid-crystal display is one kind has the protective function product to the eye, therefore eye health this question is neglected by the populace. But fact is really this? What is rarely known, although the liquid-crystal display does not have the injury theoretically speaking to the eye, but if is not correct uses, still will harm our precious vision, even created eye's harm! Understands us
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