1 TurnitinBot/2.1 (http://www.turnitin.com/robot/crawlerinfo.html) /rde/contents/library/ps2img/cgi-bin/eqn2gif.cgi 157.118.3.12 1344996052 2012/08/15 11:00:52 y=f(x) 1 新規に受け付けます。 20120815_110052 Wed Aug 15 11:00:52 2012