http://www.google.com/search?q=cache:2xk4xmHfn_kC:www.kcn.ne.jp/~ca001/E12.htm+%E6%96%B0%E8%81%9E+%E4%BD%BF%E7%94%A8+%E8%A8%98%E5%8F%B7+%E6%84%8F%E5%91%B3&hl=ja&ie=UTF-8&inlang=ja

　全面的に同意。