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.
中考英语精选真题讲解
英语中考语法(四)数词专题复习
名词考向分析与考点训练
英语语法大全整本收录(五)动词
英语宾语从句专题复习
九年级英语上词汇专项练习
八年级英语单项选择专项练习二
九年级英语上完型填空练习七则
英语中考语法(一)名词专题复习(1)
英语课外辅导:中考 V-ing 形式考点分析
八年级英语用词适当形式填空
八年级英语上单选专项练习一
英语语法大全整本收录(四)形容词和副词
冠词考向分析与考点训练
九年级英语单选练习50
英语中考语法(五)动词专题复习(1)
九年级英语句型转换专项一
八年级英语上重点词组练习
击重点句式链接中考考点(一)
八年级英语同义句转换练习
中考英语词汇练习后三册
英语中考语法(六)连词专题复习
初中教材中的八个IT句型
英语语法大全整本收录(一)名词
八年级英语用词的适当形式填空
中考英语短文填空练习一
八年级英语上单选专项练习二
九年级英语宾语从句专项练习
初中英语常用量词词组及其它词组
八年级英语单项选择专项练习一
| 不限 |
| 英语教案 |
| 英语课件 |
| 英语试题 |
| 不限 |
| 不限 |
| 上册 |
| 下册 |
| 不限 |