围棋常型百例（17）

http://sites.google.com/site/wqcxbl/Home/%E5%9B%B4%E6%A3%8B%E5%B8%B8%E5%9E%8B%E7%99%BE%E4%BE%8B%EF%BC%8817%EF%BC%89%E3%80%90%E5%94%90%E9%97%A8%E9%86%89%E7%8C%AB%2C20%E5%88%86%E9%92%9F%E3%80%91.rec?attredirects=0