Many people use mobile phones as the alarm clocks and they...
A技巧;B步骤;C习惯;D决定;根据所给的名词词义以及上一句内容:Many people use mobile phones as the alarm clocks and they also use them to check e-mails before sleeping.(许多人用手机作为闹钟,他们也用手机在睡觉前检查电子邮件。)这些都是人们使用手机的"习惯",而就是这些"习惯"会...