/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: MasahiroOkuma https://cdn.slidesharecdn.com/profile-photo-MasahiroOkuma-48x48.jpg?cb=1523107624 ¥Þ¥ë¥Á¥á¥Ç¥£¥¢?¥¯¥ê©`¥Á¥ã©`£¨¥Þ¥ë¥Á¥á¥Ç¥£¥¢ÉúÎ