What sort of work do you do? academic paper writers What they found was fairly surprising: turns out, sadness and disgust aren’t really infectious. Joy is somewhat more contagious. But you know what’s really contagious? Rage. The team found that angry tweets spread at an average rate of three degrees or “hops” from the original user. 必須 2000文字以内 [bbs:youtube:(Youtubeの動画ID)]と書くとYoutubeの動画が貼れます。(例:[bbs:youtube:OQThUAQ0UN0])