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From: cchikakoo@yahoo.co.jp
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Subject: Re:  $B3F (Bf_ $B&A$,O"B3$H$J$k (BA $B>e$N:G<e0LAj (BT
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大変ありがとうございます。とても参考になっています。
もう一度考えて直してみて,下記にまとめてみました。
http://beauty.geocities.jp/noname45754/topology/continuous00.jpg
http://beauty.geocities.jp/noname45754/topology/continuous01.jpg
これで大丈夫ですかね。