2007-10-21 メモ http://www.youtube.com/watch?v=ssJutXkpSlY http://www.youtube.com/watch?v=GBY6Da1RuLk http://www.youtube.com/watch?v=nPbrWtjTIno http://www.youtube.com/watch?v=gLESpHrtvxs http://www.youtube.com/watch?v=cUueEVXw7ec