有“杀伤力最强舆论载体”之称的微博,在过去一年时间里经历了由小众使用到大众流行传播的过程。其中,一个引人注目的现象是,政务微博已经覆盖中国所有省级行政区,扩展到政府机构 Weibo, which has the title of “the most powerful media of mass destruction,” has experienced the process of being used by the public for popular dissemination in the past year. Among them, one striking phenomenon is that the government microblogging has covered all the provincial administrative regions of China and expanded to government agencies