国产18禁黄网站免费观看,99爱在线精品免费观看,粉嫩metart人体欣赏,99久久99精品久久久久久,6080亚洲人久久精品

CET4大學(xué)英語四級考試看圖作文常用句型

時(shí)間:2015-10-16 13:46:00   來源:無憂考網(wǎng)     [字體: ]
Student Use of Computers
As is clearly shown in the chart, the average number of hours a student spent on computers increased from two to four hours per week from 1990 to 1995. Especially, the number reached approximately 14 hour per week in 2002. Why are there such great changes during these days?
There are three factors leading to this phenomenon. Firstly, because of the sharp decline in the price of computers, most college students can afford one. Secondly, the Internet provides access to various kinds of information students are interested in. Finally, playing computer games or surfing online is relaxing. To sum up, low price, easy access to information and wide use make students use computers a lot.
As for me, computers do bring convenience to students; however, it is no good fro students to spend too much time chatting online or playing computer games. In brief, in spite of the problems concerning the use of computers, we can’t deny that computers are of more merits than defects.