With the increasing use of cell phones, spam message has become a heated issue. According to a survey, on average, people receive about 40 pieces of spam message per month. Spam message may disturb, confuse, or even threaten people at any time.
Generally, there are two reasons for the spam epidemic. On one hand, due to the fact that text message is a comparatively cheap channel, many companies take advantage of it to advertise their products or services. Whether people are willing to receive the message is neglected. On the other hand, operators holding lots of information on cell phone users sell the information and make money out of it.
To solve the problem of spam message, relative authorities and professionals should make joint efforts. The government should set up laws to severely punish the illegal advertisers and those who disclose users information. Cell phone researchers and developers should upgrade the products and enable them to delete the spam automatically. Should people act together, they will be free from the spam message.
雅思听力图书馆场景高频词汇整理
雅思听力考试的八大注意事项
雅思听力场景词汇:课程选择
雅思听力生活场景词汇整理
雅思听力题做题的三大步骤
雅思听力高分答题技巧:读题
雅思听力高分技巧:读题
八类雅思听力常见信号词
5大雅思听力答案书写的注意事项
雅思听力场景词汇:职业装
雅思听力细节类考题答题技巧
雅思听力高频词汇:全球地名篇
雅思听力原因结果类选择题题型特点
雅思听力场景高频词汇:交通工具
雅思听力常见话题总结:动植物
剑桥雅思中的雅思听力评分标准
雅思听力场景词汇:数学
雅思名师解读剑八听力题目变化
三招有效提升雅思听力练习效率
雅思听力过程中的注意事项
雅思听力各部分的答题策略
20个雅思听力场景短语
雅思听力租房场景必考考点:Money
雅思听力基本场景词汇:租房
雅思听力训练:电话号码7步走
雅思听力场景解析:生活场景
雅思听力地理场景答题技巧介绍
雅思听力分类词汇:饮食词汇
如何选择合适的雅思听力练习方法
雅思听力中的两类信号词
不限 |
英语教案 |
英语课件 |
英语试题 |
不限 |
不限 |
上册 |
下册 |
不限 |