请你根据以下图表和提示写一篇关于我国手机拥有量变化的报道，并阐述手机给人们生活带来的利和弊。
1．方便，可以随时随地互相联系；
2．许多功能满足不同要求，如发短信，上网等。
3．有时接到打错了的电话并为之付费；
4．电磁中辐射有害健康；
注意：
1．100字左右
2．开头已为你写好，不计入总词数
3．参考词汇：短信——short message
上网——surf the Internet
电磁辐射——radiation
As can be seen from the chart, great changes have been taking place in the ownership of mobile phones. As can be seen from the chart, great changes have been taking place in the ownership of mobile phones in China. At the end of 2002, there were 20 million mobile phones. By year 2005, the number will reach up to 30 million.
网友回答
(答案→) As can be seen from the chart, great changes have been taking place in the ownership of mobile phones in China. At the end of 2002, there were 20 million mobile phones. By year 2005, the number will reach up to 30 million.
解析：围绕手机利弊展开，注意：要点的表达和完整性，注意过渡的自然醒。